When you say it like that, it does seem silly. But there are people whose eyes narrow in on those differences, and they find any reason they can to explain why one is better than the other. [And it sounds like there are other worlds that have the same problem... It's disheartening to hear, but...]

And there are also people who can look past those differences and realize that there is more to a person than whatever their blood may be. I think everybody is capable of getting there.