Sorry, but I find that thought process kind of idiotic. It's like not buying a certain car because the guy that screwed the dashboard together on the assembly line went to an anti-war rally on his day off. My decision of which movies to see or not to see is based on the movies themselves, not the political views of the actors, or the director, or the second assistant key grip.
You, of course, are free to do as you choose.
As are you, of course...
We just report the facts, you decide.
I've already decided to watch this movie as often as I can afford... probably at least 10 times, hopefully more. And buy both versions of the DVD. And the soundtrack. Good luck with your little boycott thingie!