I understand that a theocracy is unconstitutional. Apparently you don’t.
You haven’t yet demonstrated that it’s not a religion. That Islam contains political components doesn’t mean it’s not a religion Judaism contains political components including laws it’s adherents are expected to follow. So does the LDS Church. Beliefs that a particular political system, different than our own, are allowed in the USA, even in houses of worship. There’s nothing in the Constitution about what beliefs aren’t allowed. The government deciding to close houses of worship by fiat is not only unconstitutional, it’s a dangerous, slippery slope.
Even beyond religion, there’s freedom of association. Muslims building a place to gather with other Muslims is exercising their freedom of association.
Beyond that, closing mosques will only drive the potentially dangerous dialog to the equivalent of house churches, the internet or encrypted aps. Radicalization by YouTube videos is common. Being out in the open is far better for monitoring purposes.
As soon as we start infringing on Constitutional freedoms, the jihadis win because we’re becoming more like them: defining what religions and religious actions are OK, and who can get together with whom and have conversations about which topics. Are there limits? Of course, but saying a religion believes in a theocracy therefore its houses of worship should be closed down is nonsensical.
Communists, socialists, and anarchists are allowed to peaceably assemble and discuss how they want to change our government. So are Baptists.
Islam is certainly a danger. The threat is not only the havoc jihadis wreak, but also in the Constitutional protections politicians decide to ignore in the name of trying to stop them.
FYI.....
http://www.thegatewaypundit.com/2015/11/breaking-syrian-refugee-already-missing-in-louisiana/