I consider perceptions of beauty to be malleable just like most things...
I do believe there is more to picking a partner then just attraction and other obvious things (Personality, compatibility, etc).
Racism is certainly involved when people won't get with a certain race because they don't want "bad genes" or something like that.
I think that sexual racism and sexual oppression exist.
"Criticism must be sharp… If you do not do things well, I won't be satisfied with it, and if I offend you, I offend you, and that's that. To be afraid of offending people is nothing more than being afraid of losing votes and being afraid of having difficult relations in one's work with one's co-workers. Will I starve if you don't vote for me? Nothing of the sort. Actually, relations will be smoother if you speak out and put the problem clearly on the table… A bull has two horns because it has to fight. One purpose is for defense and another purpose is for offence. I have often asked comrades, Have you grown any horns on your head?' You comrades can feel your heads and see… I think that it's better to grow two horns,' because that conforms to Marxism" - Mao