I know a lot struggle with things like this e.g. Author turned out to be racist, homophobic etc.
Some people don't like to separate the art from the artist but I feel it can be done. For example I enjoy the usual suspects even though I've not seen it in years and I can enjoy it even though Kevin spacey turned out not to be a nice person
I find it hard to watch Tom Cruise in a few movies because I know he's a Scientologist and I despise that crap, but I try to think of his characters rather than him. Same for Giovanni Ribisi, Wade in Saving Private Ryan and that villain guy in Avatar.