It's not a denunciation of white supremacy; in fact, Tommy says that the white athletes are not making excuses, but submitting to the rules and wanting to play their best, as are many other black athletes.
Tommy was calling out this particular athlete who got kicked off the team for rules infractions—for what he considers to be stereotypical narcissistic behavior by a certain class of black women who refuse to take accountability for their actions, blame everyone else for bad choices, and hypocritically use religion as a shield. He expresses these views interspersed with a lot of very bad language, and totally hilarious rap lyrics that mock the selfishness of women who abort due to casual sex, poor planning, lack of foresight, contempt for the father, etc.
He is surprised that these words are coming out of his mouth, he says, because he was indifferent to the issue of abortion in the past; but this athlete really got his goat, by using her abortion and the death of her brother as EXCUSES for not getting the mandated random drug tests required to compete, which is why she was kicked off the team. He thinks she is a monster for using the apparently gang-related death of her brother as an excuse when she made the choice to kill her own baby in order to compete in the Olympics.
He is enraged that women can claim that their feelings should excuse them from any and all responsibilities, but men have to perform according to rules. She accepted the rules of being an Olympic contender, but now is saying the rules are unfair, racist, etc. He is appalled by this, apparently because he believes many black women use similar bait-and-switch and emotional blackmail in their interpersonal relations with male sexual partners — they agree to terms in a relationship and then try to change the rules and complain about how they are treated, blaming the man. He also applies this complaint about "any woman you let live in your house", giving the example of mothers or sisters who are living with a man and not paying the bills, but who criticize the house rules set by the man who is paying the bills.
I repeat, interspersed with awful language, but there's usually moral wisdom as well as humor in Tommy's rants.
Thanks!