Here's a solution. If you want to listen to their music, listen to it. If you don't, then don't. No matter who it is and what they've done, music can still be good and enjoyable and vice versa. If it doesn't feel right to listen to it, then don't. But I wouldn't advise not listening to quality music (not saying it is or isn't, just speaking in general) just because you don't care for the person that wrote it. I guess just do what your heart, so to say, says. If it feels wrong, then it very well might be.