Let me ask you a simple question. Is Islam at war with the United States?
At the very least some of Islam is.
Not all.
But that's not the question on the table.
For instance: It's arguable that many in the Catholic Church support, at least, Socialism...some outright Marxism. Nearly the entire Church would see our southern border freely open and the full legalization of anyone who crosses it.
That is clearly an existential threat.
Should we "outlaw" them too?