the biggest problem for me was reconciling the caste system with hinduism being aryan originated,  but once i realized the caste system was instituted after they started mixing and being defiled, to keep the shit skins in check, then it all made sense so we need to pick all the caste stuff off of hinduism and see what we have there while i believe in the concept of heirarchy, for example if one person practices a craft for 10 years versus a person doing it for 1 year, then he will be more skilled and therefore "above" the beginner in that sense,  but castes as we understand them is not a heirarchy that i believe in socially, like one group having power over another because among whites, they're all pretty much equal in ability, that's why they're white.
Croatia