...that includes in its worship services calls to enslave your children, rape your wife and steal your property? Those acts are already banned by law and the Constitution, thus, there would be no need to make a Constitutional amemndment banning your 'belief', your practice of the belief is already limited as it infringes on the rights of others. The 'faith' or religious aspect would never need be touched to limit the danger of the religion you describe. (if existing laws are upheld.)
These things are also outlawed in all the European countries who are now bending over backwards to the islamic influence and threat of violence.
You can not have it both ways. It is happening right now in democracies all over the world. Tell me what will keep it from happening here?