but no

good vs evil

No one ever said this was a discussion of good and evil. really valid point and i'm impressed by your thinking..

and FREEEEEEDOM!!!! (hint: Freedom to get smurfing murdered by Fiends/Raiders/Powder Gangers/Corrupt NCR Troops/Feral Ghouls/Super Mutants and all the other things the NCR are too weak to deal with)
Wait...what? Too weak for FIENDS? Which faction's endings causes the single greatest blow to The Fiends? That's right, NCR. Powder Gangers? NCR makes short work of them. What threats has the Legion been able to keep at bay?

What faction's ending causes the Followers of the Apocalypse, arguably the only "good" faction in the game to be either totally displaced or even downright destroyed? Caesar's Legion.

Great Khans? Caesar smurfs them over. The Kings? Demolished. Novac? Almost totally destroyed. Oh wait, NCR had one tragic massacre that almost no one in the NCR endorses and it's an imperialist hellhole. Caesar's Legion does this as a policy rather than a tragedy and it's acceptable? What sort of argument is that? Who's the hypocrite here?
because democracy is way more important than living in peace and stability. AMURRRRCA says so. Hell let's ask what the peoples of Afghanistan and Iraq think about that! i mean hey ho I may live in a war torn trouthole and poverty and in constant fear of my life, but on the plus side I can call the our troutty leaders who got me into this troutty situation dorks! AHHRRRRRRRR HAAAAAAAAA ANERRRRRICAAAA COME ON AGAIN TO SAVE THE MOTHERsmurfING DAY YEAH
Afghanistan is under the American banner? Iraq is an American colony? Despite appearances to the contrary, no. No one is endorsing the same policy here, and your insistence that "NCR SHOULD BE LIKE AMERIKAH" is a massive really valid point and i'm impressed by your thinking. argument. America became the same way it was because the population was easily led by those who had no interest with them. While such is a risk of democracy, it is not inevitable and is reversible.

The thing is, NCR does provide safety and security for its citizens. ALL OF ITS CITIZENS. There are no slaves, no people punished for speaking out. Caesar's Legion cannot provide safety for its citizens because it endorses the mistreatment and subjugation of a large portion of its citizens. Whatever security the NCR somehow fails to provide, it makes up for by not establishing a certain portion of the population as objects.

Also, if the Legion was so capable of performing better than NCR militarily, why haven't they been able to expand in their territory until a massive political paradigm shift is specifically engineered in their favor?