I actually agree with Phil on this one, to a large extent - and it isn't just black men, it's men in general.

Very, VERY overused example - but look at modern advertising. If there is a male character and a female character in the commerical which one is clever and knows what to do and which one is stupid? Further more , in family sitcoms which parent is usually the together clever one and which one is a but stupid / goofy / in need of moral guidance?

And that's just the tip of the iceberg - in the last 50 or so years men have been told they have to change, but not what they have to change into, or how. I think that this agressive, demeaning type of porn is at least partly related to that.