I can't quite understand your point on that, you got me a bit confused with your comment. 
 the bikers were there in honor of the 9/11 victims, the Million Muslim march was to disrespect those people. As much as we don't like the idea of Muslims diss-honoring 9/11, our Constitution and Bill of Rights give them the right, it also gives a bunch of bikers the right to let the Muslims aware of their presence and their opinion of said protest 
Another thread about it, the fisrt post explains it very well.
http://www.pirate4x4.com/forum/gener...r-ride-dc.html
great video 
http://www.youtube.com/watch?feature...SlpTkjo9M#t=55