I feel like I prefer a musician who is a terrible person
Why would you be attracted to a musician that is a terrible person?
I've had my standards too. I like good music; it doesn't matter who is the artist always.
It's fine to like good music, but if the person is terrible, you shouldn't support them. That is wrong to support someone who is unethical.
I'm only listening to his song because of the music and I haven't met him so it doesn't matter.
I see what you mean. When you like a particular piece of music or song, it always happens to be by a musician that isn't a nice person. Well, you do have good musical taste, and I suppose it's all about the song and not the person for you, so everything makes perfect sense now!