I have no skin in this game, but a quick reading gave me the impression that he is claiming that Black Americans on average don't like White Americans, and therefore the latter should avoid the former.

I don't know if he says that in good faith, or if there's a subtext I'm missing, but it seems like there's a reasonable way to interpret this that doesn't involve Adams harbouring an unfair negative prejudice.

I don't expect anyone is going to come along and steelman his argument for us, but I do have difficulty seeing how the NYP's article and the general reaction follows from what I naively impute from Adams' quotes.

To be clear, I'm not trying to say who's right or anything, I'm saying that I think as someone disconnected from US racial politics I seem to lack some necessary context.