I feel like there's a world of difference between "no x" and "I prefer x but like some y as well".
oh, that's definitely true. We all have those. Heck I strongly prefer blondes over brunettes, and a certain body shape over another and I surely don't consider myself racist towards gingers or brunettes. I suppose the extreme semplification on online dating profiles, "no blacks", "no Irish" or whatever may or may not have racist connotations because of said simplifications. i don't know, I never did such a thing, although it's very likely these people are indeed racist