I guess I view it differently. You can listen to whoever you want or watch whoever you want. If you don't like someone because of the clothes they where, where they come from or their political views that is your right. You aren't forced to support them or buy their products.
There is a HUGE DIFFERENCE between simply making a personal choice, and ORGANIZING A BOYCOTT. Huge.
If people are turned off by what the Chicks are saying and it influences their enjoyment of the music, I can ridicule that, but it's certainly their right. To take it that step further & actually organize a boycott? To me, that is un-American in spirit.