So flying the American flag also means you're owning things like the School of the Americas - where we taught para military forces in latin america how to torture and use scare tactics to do everything they've done to the natives down there since the 70s and 80s?
You should be well aware of everything that your own symbols mean before condemning others. Apply your own judgment against the american flag in the same way. I think you'll find it wanting. But you (or at least many other people) are proud to be americans, despite that, not because of or including that.