NCR became bad guys in the Mohave due to extorting locals and their massacre at Bitter Springs. Legion is very self-aware that their supply lines depend on local traders and curried their favor.
NCR became bad guys in the Mohave due to extorting locals and their massacre at Bitter Springs. Legion is very self-aware that their supply lines depend on local traders and curried their favor.
The tribes in New Vegas hate House, but also want the NCR gone, which is why the Legion won the ear of the Omertas through bribery and wanted to blackmail the White Gloves into supporting them, as well as aligning with the Khans following the Bitter Springs massacre.
Hell, the reason why the Fiends antagonize NCR so much is because the Great Khans give them chems in exchange to do *specifically just that*. Also, isn't it fucked up that the NCR is repeating the same mistakes as the past, giving a bunch of convicts (Powder Gangers) dynamite to do railwork?
Mind you, the NCR has also been at war with the Brotherhood of Steel while all of this has been going down, years before New Vegas even begins, despite formerly being on such good terms with them that one of the first five states in the NCR was named after BoS's founder Maxson.
Pretty much half the main storyline of New Vegas has you running around trying to woo over half a dozen different factions into fighting for you or for someone else and Yes Man gets super passive-aggressive when you burn bridges or get other groups to align against you.
Honestly, after playing NV, Fallout is way more cynical about human nature than I remember it being, and given the times we are in right now, it's still not nearly cynical enough. If anything, a character like Aaron Kimball is too horrifyingly realistic.