I think both can be true. Take melanin content, any other arbitrary physical attribute, or tribal identity: we know that leads to real -ists and -isms. Indepe

I think both can be true. Take melanin content, any other arbitrary physical attribute, or tribal identity: we know that leads to real -ists and -isms. Independently, give kids more than others, like the rigged Monopoly game and watch as they take more shared food. Combine these two patterns together, and it's easy to develop truly repugnant, entitled, greedy, mean people with permanent insouciance and shit-eating grins.