Issues unrelated to their performance don't really bear on whether or not I will consume an artist's work. I suppose if I found someone really offensive, I might avoid patronizing their work in a way that has some financial meaning to them, like seeing a performer in a really small venue, but other than that, I don't really care. I don't view the performance in the context of their personal actions, and I don't consider my patronage as providing material support to someone I find distasteful.
Demented and sad, but social, right?