I agree. Do I wish they'd keep they're mouths shut? yes. Do I sign and shake my head? Yes. Does that stop me from listening to their music or going to their movies? No.
Although, at the risk of contradicting myself, there is one musician whom I would never pay to see no matter how good his latest album was - Michael Jackson.
As far as I am concerned he should be in prison. Springsteen might whistle a leftist tune but - as far as I know - he isn't a pervert.