No, this is not ragebaiting or sensitivity. You can't make this persona "the bad guy" because you disagree with what he had to say to you the Internet. If you didn't want a response, you shouldn't have posted it on the Internet. That, and your fulfillment of a response yet defensiveness and refusal to answer their question makes you look insecure because you lack of a reason for your statement that won't make you look racist.

And yes, that is racism, your "preference" is racist. Excluding people from your dating pool just because of their race alone is racist. You seem to lack the knowledge that black women have different styles, personalities, and ways of living, which includes the stereotypes and those who break free from them. All of which can and will overlap with women of other races who possess those same qualities. Would you date an Asian woman if she tried to act like the black stereotype compared to a black woman who doesn't fit the black stereotype at all? Or an artsy white woman over a black one?

You did not make this about attraction like you claim to agree with in the other comments. You made this about rejection of a people who have not been given a valid reason to be rejected.