I don't think you really hate white people just like I don't think a lot of the people here complaining about these stats actually hate minorities. (Though some may, I can't rule that out.) But honestly I have no way of knowing if you truly take pleasure out of the fact that whites are propagating less. But if you say you're joking I will take your word for it.
But at what point do these "reverse-discrimination" jokes stop being funny or tolerated? I think we can agree that if someone said "these damned [insert racial insult] are taking over this country" it wouldn't be funny even though the person could say they were joking afterwards. I've always thought it was BS that the same comments about whites were more tolerated because whites were the dominant population. Whites are barely the majority any more. It's time to end the double-standards.
Maybe our misunderstanding is that you think "whitey" is not a derogatory term? It is.
http://en.wikipedia.org/wiki/List_of_ethnic_slurs#W But even then if you hadn't used it, I think a guy joking about having sex with chicano women to make the chicano population more white wouldn't be considered funny.
So someone can accuse me of being too serious about this but I'm mostly taking issue with the double-standard.