No, it's a lot more complicated than that. And I'm by no means trying to defend MJ.
Would you say the same thing about Beyonce? Or any other black artist who is/was trying to appear more appealing to mainstream and/or white audiences to achieve success?
When the hatred of your people/culture has been so deeply rooted into the mindset of a country, to the point where its become a cultural feat of its own, why are we so surprised that at least some of these people will have internalized issues about it? They don't have to be "a disgrace" or maliciously anti-black to hold some troubling views about their own identities. This odd necessity to hold black people accountable for not being pro black enough is not a productive way to discuss the ways racism has permeated Western culture, imo. I look at it in a similar way I'd look to a black woman who was straightening her hair to "assimilate" and look "professional" enough to hold a fucking job, because natural black hair is seen as "dirty" and unprofessional. Would it be okay to say that woman hates herself or her race?
And I'm not saying MJ is not a case of internalized racism, because by all accounts it very much seems so, but it's also only very recent when we've become more comfortable with black artists being as unapologetic as possible about loving themselves. We love black art, but we don't love black artists who seem too unwelcoming to white people, so we've forced them to morph themselves into the kind of black artists all people love because they use their culture to entertain and love their culture, but not too much so that it seems bothersome. Also, I feel like it's a pretty established notion that MJ was very likely (very) mentally ill, so I guess that's also important to remember when discussing his troublesome views around his cultural/racial identity.
Also, why would black people hold onto protecting MJ? I mean, look at it this way. Black people, as in black people in America especially, don't nearly have enough people who have achieved such insane amounts of success worldwide. And then you have someone like him, and you are proud, and more willing to overlook the bad things (especially before they were even as known as they are now). For a culture so thoroughly dehumanized over the centuries, I do understand the collective need to have "your" people that can bring you a unifying sense of pride. My 2 cents lol.
p.s. this was all said with my personal feelings about him set aside. personally i cannot bring myself to listen to his music anymore