I don't see why it is a big deal to boycott something you disagree with. Especially if the person creating it whose ideas you are seeing or reading and who is gaining profit from your consuming is someone who expressly dislikes/disliked what you are.

Roman Polanski disgusts me, and I won't see his films. Sean Penn is an asshole, and I avoid his work, but I don't really see fawning over evil dictators to be as bad as drugging and raping minors or publicly expressing prejudice views against people who are different than you.

I don't see a problem with someone liking Polanski films, but I have a hard time separating the man's work from the deeds he did, so I don't. I certainly can't blame Bingo for not wanting to waste money on anything Card related.

In fact, I find the "flak" he is getting and the suggestion that behaving that way is akin to bigoted behavior that is making him boycott it in the first place to be really bizarre.