It is only easy to see it as worse if you ignore all of the bad things they did.
As an easy rebuttal to one of your points, yes blood purity is bad; and so is religious purity.
As an easy rebuttal to one of your points, yes blood purity is bad; and so is religious purity.
Look, I'm open to the idea that slavery in the US was somehow the worst slavery ever. But most arguments used to prop up the idea rely on laughably naive views on slavery elsewhere. Worse, much of it seems to stem from a naive "US bad" gullibility in taking in information.