Is refusing to date a certain ethnic group racist?

[Brianna]

Is refusing to date tall women heightist? I'm tempted to go all Jemima Crow on this particular subject. It should be illegal for 4'11 girls to date tall guys. I don't care what race they are. Stick to your own kind, munchkins! I'm looking at you, Eva Longoria.

[Puppy]

No, people have the right to stay pure, not to mix, to keep their language and traditions. This is very important and it has nothing to do with racism.

[Ivan Kramskoï]

I have dated only European girls, mostly blonde and small.
Not at all, it's just natural attraction.
For an example I am not attracted in girls that look like my sister ...