What relevance could some things that you have no proof he either said in the first place (yes, me and everyone else here can fabricate screenshots with ease) or still believes have to this particular book review?
Even if he does hold a belief that you label "horrifyingly racist", why would you assume that his "true intentions" pervade everything else he writes? That's not charitable at minimum, but more to the point it's conspiracy theory whack job level implausible. Do you seriously believe he's secretly trying to advance his pro-Jew anti-Black agenda with this...book review?
I promise you his words don't just sound smart, they are smart. He isn't a pseudo-intellectual, he's just a regular old intellectual. The fact that he might hold, or once held, some ideas that you or others place on the "wrongthink" list is irrelevant to the correctness of other arguments he makes.
I am quite sure that vast amounts of public scrutiny would uncover wrongthink in your past too, held09218.