Why do you care?
Seriously, what effect does this have on you one way or the other?
I'm not trying to be politically correct, I'm not saying anything about this artist, etc, I'm just wondering why, in this day-and-age, it's important.
Consider the old romance movies with Rock Hudson. TO THIS DAY, women are swooning over his characters even though it turns out that the actor was gay (and tragically died of AIDS).
Love (or hate) the art, not the artist.