Are we reading the same manga? Just because he put it in nicer words, doesn't make it justified. First off, Sasuke was never meant to be 100% evil and he was also never meant to be the final villain. However, his way of thinking is to just run from problems and kill/erase people/things that he thinks will interfere with his way of thinking. That is something that Hitler did. Are you saying you would have followed Hitler and killed everyone who didn't believe in/fought against your New World Order?
It doesn't matter if he's saying he's going to take all the the hate in the world, that doesn't make him a good leader. Plus, back in the NV way of thinking, if he takes all the hatred in the world, and is an Uchiha, he is going to end up being someone like Madara or even worse, Kaguya.