I'll be honest, the black guy on white girl fetish doesn't do anything for me. I'm here because I'm a white boi who wants black cock. When black guys go out looking for dat smooth white ass, I want it to be my ass, and not hers, so I'm a little biased
. I'm in Britain, so things may be different here. I know in some US states there is a real black majority in many schools, but here there rarely is. In London there's often a majority of non-whites, but then it tends to be a whole mix of minorities. What you said about your school doesn't surprise me. In life, the best guys get the best girls. Now in school, no one cares how successful you are, how rich you are, etc.. School relationships are probably almost entirely based on looks and personality (and there's probably a few factors that come with immaturity that you can throw in there, such as wanting to be rebellious, etc.). Pretty much any study you find will, when rating races based on attractiveness, put white women at the top (except in asia) and black women at or near the bottom. Now in a school the sportier, taller ones are going to be the best guys, and these will often be the black guys (especially where there's a larger black population), so yeah, black guys in relationships with white girls isn't a surprise. The white girls go for the best guys, and the black guys go for the white girls.
Disproportionality can occur, as you suggested. If you just happen to be in a class where all the white guys are ugly and a bit geeky, and all the black guys are on the basketball team, that's gonna change how you view races. At uni here in the north of the UK, I'd definitely say the white guys have the more attractive individuals. There's quite a few black guys and I don't often see one where I'd actually think "Yeah, I'd let him do me".
"black men are considered more attractive compared to other races (when adjusted for IQ)" - As a statistics student, this sounds like one of those manipulated surveys to show what the person in charge wants it to show. The fact that they had to adjust it based on IQ (which has absolutely nothing to do with attractiveness) suggests that blacks weren't at all on top, and whoever took the survey thought of way to adjust the data to put blacks on top. It also leads me to believe that the survey showed that only girls with low IQs preferred black guys. It's kinda like saying that asians are the most attractive when accounting for height.