I think you got the wrong link on the one that says "Some BIPOCs are really hostile to white people, that's racism."

(It's also a run-on sentence, but I guess people write and say run-on sentences all the time.)

The link talks about systemic and individual racism, and does not give a good argument (indeed, it does not even state) that BIPOCs cannot be racist against whites, which is what the hostility is likely to entail.

Maybe you had something else in mind? You disagree, but the link disagrees with your disagreement....