You raise a great point. I would add, however, that doing this explicitly and systematically is much worse. In the US we are far from systematically banning peo

You raise a great point. I would add, however, that doing this explicitly and systematically is much worse. In the US we are far from systematically banning people from riding the subway if they don't share the correct political views. There are definitely worrying trends but we still have enough of the idea of not discriminating in our country.