I'm playing a good/neutral guy and my original idea was to have an outcome where the NCR, Mr. House, and Legion all fail to gain control over the Mojave, and small settlements like Primm, Goodsprings, etc. get to decide their own future. I mistakenly looked at the FNV quests section on the Fallout wiki and saw that there are only four paths you can take - those three, or 'Yes Man.' I didn't want securitrons involved because I wanted bots to be out of the equation (main reason why I killed Mr. House) but I'm gravitating more towards that path now. Is it possible to help Yes Man without having to fight the NCR or commit violent acts against them? I don't want them establishing control, but I don't want to kill them either.
All I want to know if that's possible, or if going down the Yes Man path is essentially a "screw all you guys now all of you die, I crown myself king" kind of thing.