Normally I would dismiss people like that outright, but these days it seems like people lose roles and gigs based on these types of small but loud groups of detractors. Need I remind you of the Silverman example recently?
I think Dave will be fine obviously, but it's interesting to see how comedy will navigate this more modern minefield of offended types, because in the past it was mostly stuffy conservatives who had no power over popular culture desperately banging up on the ceiling telling the kids to be quiet, but now it's the very people embedded in popular culture doing it, and once those kinds of people decide to try and insert the idea that you should fuck off and retire into the public conscience, I wonder what kind of ripples that causes.