"What if the KKK declared itself to be a religion?"
This has nothing to do with anything. Completely absurd.
"In Germany, the Scientology religion is banned, in Italy the Masons are too."
Since when are the Masons a religion? Anyway, I like to think of the U.S. as a better place than Italy or Germany, so I really don't care what they ban.
Like it or not, Islam is recognized worldwide as a religion and there's nothing any of us can do to change that. And if we (the U.S.) were to follow your suggestions about Muslims, then terroritss will truly have own.
They are a death cult, with destruction and killing as the main tenets. Why can't a sane govt outlaw their existence? Even that wacky calypso playin' Louie Farrakhan causes dissent and hatred of America, and he is recruiting in prisons for his "army".