OMG why are there so many cold people that just agree with House? The Kings, instead of killing off all the NCR, accepted a treaty, they did not join the NCR or anything, it was just a simple treaty. House is a paranoid old former genious that thinks Vegas is he′s own to claim, so he playes around with NCR and Legion, and then sends a killing blow and takes the dam, driving out the Legion and NCR. He aint excactly that a New Caanan Mormon, so stop acting like he is a saint and only does whats best for Vegas and bla bla bla. He doesnt give a [censored] about the people, hell everyone is happy when he is dead (seeing those smiles was worth the 3 c4′s) so why should he be the leader if everyone hates him? Its like saying Osama Bin Laden should take over America, [censored] disgrace right?

I solve this problem on each of my plathroughs by killing Mr.House. I'd recommend collecting the snowglobes first and collecting your caps from him before you go and slaughter him though.

Your anology doesn't apply here. The fact is that Freeside is right next to the Strip. House sees a partnership between the NCR, who he is trying to drive out, and the Kings. It's logical that he is not going to act favourably towards the Kings.

As for the legality of his dominion, this doesn't really matter in a post-apocalyptic environment. In what way is NCR's constant expansion legal, in what way is the Legion's way of total war legal? Might is right in the wastes. House has a huge and powerful robot army, its that simple.
I was never jstifying his actions so don't leap to assumptions. I was saying that I understand why he does what he does. For you to jump straight to the Bin Laden anology, you are clearly biased against House so I fail to see the point of explaining why he isn't as evil as you think he is.

I was once a house fanatic if i might say so, i got just as much love for Vegas as he does, difference is i care about people too. Although he may be a genius, and he does see the big picture, its the small picture you gotta focus on too. Killing someone at peace with ones enemy is stupid, they are not supporting NCR, they are accepting support from NCR, and instead cease fire against the NCR people trying to settle in Vegas, a noble cause which only a madman would say no too, and something only a madman would ruin. House may be a genius, but even geniuses can be mad.

And neither does yours, because he dosen't get the Securitron Army until after the Courier activates them towards the end of the game, which means that your argument for wiping out the Kings dosen't make sense. He dosen't assert any real control both legal or real over Freeside unless he wins at the end, so you can't really say "the NCR was encroaching on his turf " because it wasn't his to begin with. The whole reason Freeside exists is because House wanted to keep the "commoners" out of his gated community. When you leave people to fend for themselves, you really shouldn't be surprised when they take their fate in their own hands.

Plus, in his ending, the NCR completely withdraws from the Mojave region, thus making any worries about the "NCR influence in Freeside" bogeyman that House supporters like to roll out is laughable to say the least. Yeah, of course they're going to be a little mad that House kicked out the people trying to help them, but if the worst case scenario to come from this is that House actually has to provide for the people he now rules over, then boo [censored] hoo. Sovereignty comes with responsiblities, it's a complete package, you can't just pick and choose what you want.

I doubt they would be mad, as the Kings work towards independence, and House (if not the courier) is the closest Vegas has to independence. The NCR-King treaty was kinda just cause the kings were afraid of a huge faction that could kill them without blinking. Atleast thats what i think

Well, if House leaves Freeside to wallow in its filth, I would beg to differ. They might not want to be part of the NCR, but cooperation with them certainly has its benefits. House's Securitrons regularly shoot poeple trying to escape the misery of the walled-off ghettos, I find it difficult to believe they like House a whole lot better. IIRC, they still maintian their independance to a degree in their slide (although one of the opening slides seems to contradict that, there are a lot of contradictions in the end slides to be honest.) And really, I find it a difficult argument to make that the Kings were the victims in the whole NCR-Kings dispute, that they were coerced into accepting aid from the NCR, lest we forget the whole dispute was their fault to beigin with.

I would rather say it was a misunderstanding then the NCR fault in whole. Nonaless we agree that House doesnt have the right to kill off those that are only trying to make Freeside better.

Wait, what? I wasn't saying it was the NCR's fault at all, in fact, this is one of the few times they were completely and unequivocally justified in their reactions, and Crocker actuallyshowed remarkable restraint in handling the situation (unless, of course, you side with Moore, but then you fail the quest). Perhaps I worded that wrong. But that has little to do with my main point, anyways.

My point is that House′s actions are not justified and he did the wrong thing

Now anybody wanna get back on topic cause this is way out

I'm actually not for any one ending, they all have major flaws that make them less then ideal, but that isn't the point of this discussion. See below.
The Strip is his. The three families(his army) are fairly loyal to him(moreso then to anyone else at least) and everyone in the Mojave recognizes his dominion over the Strip. I fail to see how the fact that he doesn't have his massive Securitron army until after the Courier activates them has any relevance to the Kings. He only eliminates the Kings, if the Courier made peace between them and the NCR, after the Battle of Hoover Dam. Plus the amount of aid the NCR actually provides to the Kings is entirely irrelevant and that is all I am trying to explain. This is all from House's perspective and from his perspective, the Kings(the main gang in Freeside which is the entry for the Strip) have been seen to cooperate with the NCR. That is the end of it.

In response to all these posts:

What House did to the Kings is right and wrong.

The only outcome in-which you can have the Kings survive is if you sic' them on the NCR. Which actually isn't good, because House relies on the NCR for Vegas' economy, which ties to the outcome poorly, because you're basically placing a group that dislikes and attacks NCR in front of the Strip Gate.

I ally the Kings with NCR in my Indy playthrough, so they tolerate the NCR and it bolsters my new economy that much more.

Mr. House is a hypocrite. He says that NCR is New Vegas' main customers yet massacres the Kings for helping the NCR. House heavily taxes Primm in exchange for "protection" (against what? The legion of dead corpses of powder gangers?), so much like the Mafia. I might get that Mr. House doesn't want NCR to be in Vegas and that much I'm fine with.

How are the Kings such a threat that they are massacred?

That's why I for one, am going to shape New Vegas my way. I allied the Kings with the NCR. The NCR soldiers can't do donkey poo to my upgraded Securitron army, Boomer artillery, and unheard of technology from Big Mountain. However, the NCR civilians buy my stuff, eat my Vegas food, and spend money at the casinos.

Really, Mr. House should be rewarding the Kings for making Vegas look even more friendly.

Of course it does! When you want to live somewhere you kill the person living in the residence. After killing House, living in his suite is the obvious conclusion.

I cant believe im saying this to a brony (no offence some of my best friends are bronies LOL) but i completely agree with you. Thats excactly what i thought after House kills the Kings.
Let the House fanatics say that the blood is on my hands, but i tell them they are wrong. I did not ask for murder, i asked for peace, thats why i asked for peace between the NCR and Kings cause i didnt want inocent murder on my hands, House kinda ruins the point of that. So Indy it was, and the only reason for that is my love for the people of Vegas, not just the city itself. They deserve a Vegas where they dont need to be afraid of being killed by the leader (house, NCR or Legion in this case, Indy if you choose too) of their community. Thats why i declare myself the leader of Vegas, so i can shape a better future then anyone of those that take away the freedom of the people, and i kill anyone that picks on other people, but ally with everyone else. Its a better cause then House′s.