Please note that I do not necessarily agree with all of the opinions posted at the link.
I did and I do not understand what you are looking for. It appeared to me that there were a few ignorant racists spewing some crap that blacks are not intelligent or whatever.
I will tell you this, I do not recognize nor wish to try to understand racism by anyone. It is stupid, repulsive and irrelevant.
People are people, they are defined by what they do individually. We all make choices in life whether to be successful or not, whether to be educated or not, and whether to be good or not. That is what makes an individual, not their race.
BTW, that site is repulsive as well. You would do yourself a huge favor by leaving such ignorance and hatred behind...