Depending on the outrageousness of the Executive Order, I expect demonstrations at a minimum ( and accompanying false flag response) and more likely prolonged violent action and reaction from all sides.
Nothing Omuslim could do would be more provocative to Americans, other than banning Chritianity and Judaism.
America is likely to become like Vichy France, with an active Resistance committed to removing the nationalist socialists and communists by force.
Executive orders would be over the top.
It would have to be legislation passed the old fashioned bipsartisan “imperfect deal” way.
Any give backs or cave ins by Republicans and their “leaders” like Boehner would in and of itself light a fire.