This is a most asinine question. Read it and think :
"Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof;" WE ALREADY "PROHIBIT THE FREE EXERCISE THEREOF" Female genital mutilation, which Muslims have made part of their "religion", is prohibited"
Not all Muslims have made genital mutilation and honor killings part of their daily religious practice.
The idea that you would bring up extremist criminal activities as somehow showing that we actually DO prohit a religion is incredible.
I can't believe how weak your arguments are.
And there you have it folks, it's nothing to do with islam at all, it's all just criminal activity.