Ok but why do people think the ancient aliens thing is racist or is demeaning? There are lots of episodes of the show that talk about Europe so it's not just "brown people couldn't build that so it must be aliens!" It's not even an offensive show. It's an interesting thing to think about. 99% of the episodes probably have no chance of being the truth, but is it really inconceivable that aliens visited earth? Or that they influenced our culture?