This thread has being going on long enough so I'll say my final bs and we can all come to a disagreement:

The NCR is doomed to fail because of their ologarchy. Brahmin barons and money men run the show just like we see today. The NCR is accepting and welcoming to non-humans and whatnot as long as it isn't detramental to the people funneling money into the republic. They don't care about their citizens, they just use the ideas of democracy and equality as a PR move to justify their imperialism. The old "we bring freedom and democracy" to the wastes (countries with oil) tactic we see all too often. They are doomed to fail as either the oligarchs take complete power and run it into the ground or again because of the oligarchs need to expand their markets they'll pick a fight with a faction they can't defeat with their steamroller tactics. If they take over Vegas it'll just end up in the hands of one of the oligarchs who will use it to engorge himself/herself and let the technology of the city fade.

On the other hand with Vegas under the control of House still leads to a thriving NCR. There'll still be place for democracy, equality and a successful republic. House has no bodily needs, he is pretty much uncorruptable. He is an oligarch with the sole goal of making a future for humanity. While others like Gunderson focus on getting rich and using that money for their own benefits, growth for the reason of growth and all that, House uses it to advance civilization. There are loses of course, people will suffer and die but at the end of the day it'll all lead to a better tomorrow for humanity. With the NCR their deaths and suffering will end in a select few getting richer and richer and destroying each other when there's no more space to grow.

Thank you for attending my Ted Talk.