This struck me funny:
Most actors are either independents or liberals. Conservatives aren't creative enough to be actors or artists.*Well, aside from the obvious, that liberals would think that a homogeneously conservative field was an example of exclusion, it seems to me that this could be re-stated thus:
Most conservatives are generally too grounded in reality to sufficiently suspend their disbelief, to pretend convincingly that their lives are other than they are, or to master the use of words well enough to make others' emotions override their sense of reality.