Tom Smith recently did a LJ post about Ender's Game he wanted to just stay focused on the movie and not the person who wrote it nor his views. It's his blog and his right. But this is my blog so I'm going to go a bit further. OSC is a horrible human being. If you don't like the idea of two people of the same gender getting married, fine don't marry someone of the same gender. But don't mess with the rights of others. Your opinions (and yes, a religious view is still an opinion - attributing to "god's" word doesn't make it any less of an opinion) is no excuse to treat people like sub-humans. They do not give you the right to discriminate. Even if he won't get another dime from the movie, I can't bring myself to see the movie. First I understand it's not as good as people said it was. From the commercials, Ender is clearly psycho and the only thing the adults are really guilty of is making sure that when he does go crazy that he's focused on a perceived enemy than the Earth. I know in later books he says he regrets what happened. There's a word for that: "retcon"!
But ultimately this raised the question of whether or not it's OK to avoid the artistic works of a creator because you don't like their views. OSC only makes the problem worse because he actually talked about an armed revolution unless the people he hates aren't imprisoned. He does not deserve to be a US citizen since he clearly has no understanding of the ideas behind this country. I'd say he has a right to his opinions but he's gone beyond just expressing them and tried turning them into law. It's not like he's being done actual harm by the people he hates. They exist and his magic book says they're evil so he wants to oppress them. That's no longer just an opinion.
Now back to the question, I have thought about it and I would have to say that it depends. Does the view in question offend you so much that you don't even want to give the impression you give passive approval of those views by enjoying their creative works? If so then you should follow your conscience. I have to draw the line however when those views by the creator cross over from basic opinions into forcing them on others. There was a boycott and demonizing of the Golden Compass movie a few years back because of Philip Pullman's views on religion. The key difference is that Pullman hasn't talked about taking away the rights of others. He hasn't talked about putting people in prison because he doesn't like what they do in their private lives. Even though Pullman's views are in the film, they are not dangerous or harmful views. And that is why the boycott of Golden Compass was wrong.