Except for the fact that the US government is in violation of so many of the 'central beliefs' of its supreme source of law (the Constitution), that the very individuals that founded it would probably start a second revolution. And (if I'm wrong and this is explained in one of the first two games please, please correct me) we don't even know that the NCR was based on the exact same principles as the original US government, but a later and completely unsustainable form of that government seems to me to make it very unsustainable.
Well, again, I'm going to need to say that our
current system is a mockery of the original
intended system. Now as far as I can tell, from what I've gleaned from the NCR page at the Fallout wiki site (not entirely sure about the complete validity of the article), the NCR is a throwback to the original United States. You know... The Constitutional Republic United States.
Here: http://fallout.wikia.com/wiki/NCR
Except that it is only the position that 'taxes are not slavery' is the one which is relativistic. You aren't arguing the principle, you are simply saying 'because its not all the money you are making and only some it isn't slavery', that is relativism because you are judging withing degrees and not based on principle. In principle taxes are slavery because the government is stating 'your wealth is not your own, we own your labour (which is all you are) and we are deciding how much you get to keep, especially so on a 'graduated' scale since it targets a -specific- minority from which to take even more.
Perhaps you are misunderstanding. I said taxes are not slavery. The only way you can say that is by redefining the word slavery. Slavery is the state of being under the control of another person. Taxes do not do that. Yes, you can
redefine it to suit your needs, but it would most definitely be a stretch.
It seems however that the center of the arguement in favor of the Legion revolves around justifying their actions. This particular arguement being 'both the Legion and NCR have slaves'. The difference is that the NCR's "slavery" is simply them collecting taxes and having laws. The Legion's slavery is actual slavery (you know, the forced labor with no pay and no rights kind).
The democracy of the NCR doesn't impose its moral belief? Sharecroppers because small farms aren't producing enough food, aiding big brahmin ranchers in taking over the smaller farms so that they are 'more efficient' and produce more for the Republic.
I'm puzzled by this honestly. The situation with the sharecroppers svcks, that's true. However the problem is bigger than what you're saying.
Spoiler The NCR knows the amount of water needed to raise crops... They did the math. However, what they don't know about is that the water is being contaminated by a reactor in Vault 34. The sharecroppers do know that their crops aren't doing well but they don't know the full reason why. To say that the NCR is deliberately screwing the sharecroppers because of this is like saying that you're mad at your son because his car isn't running properly but neither of you know that it's because there's too high of a mix of ethanol in the gas. Neither your son (the sharecroppers) nor you (the NCR) are wrong really. It's just that you don't have all the facts. Besides, the conclusion you're drawing to label the NCR as insensitive towards the sharecroppers comes from a small amount of people, none of which have all the facts.
Besides, that isn't even a moral situation. The Legion imposes it's morals through punishment for things they see as wrong like drug use, prostitution, gambling, corruption, and opposing Caesar's will. The NCR if anything is free and open about letting people do what they want so long as it doesn't infringe on the rights of others. For instance, NCR troops can go to the New Vegas strip to have a good time... Do you thing Caesar would let his troops do that? The people living in Primm are a good example as well.
Spoiler The Primm citizens are able to go about their day without interference if you bring in the troops to secure the town. The worst they have to do is pay taxes. Oh the horror! Paying taxes to help support the nation that's defending the town instead of getting it for free!
Edited: Changed my anology to make more sense.