Things that don't make sense are a peace treaty with Mister House, The Brotherhood and Mister House, and no option to ally with NCR and your Securitron army.
Mr.House would never trust the BoS. NCR wants the Mojave for themselves. They don't want to share. NCR makes it clear they will come back.
NCR will keep expanding. If NCR wins the Mojave there is a chance they will take Mr.House's Army for themselves. Still they will expand, just slowly. Back west they have trains, vast farms and alot of tech and so on. They are the biggest most well established faction in Fallout. Legion is the second but we don't know how well things are back in his lands. Caesar seems to hate tech so I doubt he has trains or computers.
Did the new patch make it so you can't just unplug Mr.House? My last play through I unpluged him but could not open the doors to get out so I had to kill him.