Well, technically it is racist, its not exactly "I don't like any of those gas sniffing, gang banging, drug selling jungle bunnies!" racist, but its still racist, very small scale racism mind, it won't start fires but it'll get you a glance or two. It should also be noted that his wording might have made him sound really racist because I've seen this guys ad-post before and he did say that he'll date any race (latinos, europians, italians, asians etc) but not not anyone black without any clear justification, he also did say it doesn't matter if she's a "Halle Berry", he won't date a black girl, from this I'm assuming its a visual thing based on darker skin tones because lets face it Halle Berry is a successful and beautiful woman.
So I'm assuming that when he said he won't date a black girl he means he won't date any girl with a dark skin tone. On a personal note, being black myself I'm more attracted to girls who have lighter skin tones, not because I hate my own ethnicity but because I grew up around black people all my life so visually it does nothing for me really, not to say I find all dark skinned people unattractive, there are beautiful people who I've seen that are dark skinned, its just a the way my mind is wired.
On a realistic note, even though this guy has a very specific criteria of who he'll date, he will get a girlfriend who meets that criteria, because that's how the world works. So the feminists may demonize him as much as they want, he'll still get his girl... 'cause he offered a $1500 reward for whoever finds him said girl.