Since we now have a completely self contained political system whose goal is to be the only political system in the world, we have the equivelant to another country working within the U.S. This cannot work. Islam has declared war on the U.S. and we need to remove Islam from the U.S. because Islam will always be looking for ways to attack U.S. politics as well as physically attack U.S. citizens....again.
Islam teaches and promotes acts against the U.S.
The crimes commited by Christians are individual crimes, not crimes promoted by Christianity. That is a huge difference.