Refine the proposal a bit to make it workable - like banning all identifiable members of mosques that promote terrorism, or islamic preachers who call support jihad, or anybody who expresses hatred for America or Christians or Jews, or anybody who has shown support for Sharia.
You can base it on actions and make the umbrella very big, covering tons of actions.
Since Muslims cause death, chaos, and misery where ever they congregate worldwide, it is a good idea...as in survival, to stop Muslim immigration in its tracks. From there we will find out which Muslims want to assimilated in the U.S./Western Culture and which ones don't. The latter need to be deported for the sake of our children's future.