Instead of cutting off ties with those that are NOT "in-the-know", why not express yourself and enlighten your point of view and how it has affected you, your family, your community, and your country.
As well, what the US government does is not always a direct indication of how the American Public feels. Trust me when I say there are MANY people here in the US, citizens mind you, that feel just as vicimized by the US government as many around the world do. I don't happen to be one of them, at least yet, but they are here.
Either way, suit yourself. I don't think boycotting an Excel forum is going to do much. Again, I think expressing your view would be more helpful at getting your pint across than boycotting, but, its your choice.