Sure, we can say 1 + 1 = 2, and that's objectively correct. But in terms of morality what is "objectively right" and "objectively wrong"? Moral objectively usually comes from some base assumption that has to be made. Whether its the existence of a higher being, happiness meter, or utilitarianism.
"Instead, we want a system such that over time, the objectively better views dominate and the objectively worse views shrink in influence." According to history, I wouldn't really say this is guaranteed either, but that's my opinion.