You can't implement that as a policy. If you were to implement a policy that rigidly stated that no people of the islamic faith without US citizenship can enter the US, you would be so screwed.

There are many in the west who are just like you and I. In Canada, UK, RoI, France, Spain, Portugal, Germany, Italy, Austrailia. And there will even be some who are citizens of other countries we regard as part of the West's unwritten but sort of known "friendy" and safe" list of countries e.g. Japan, South Korea will have some. To block people entering is stupid, just on a practical level. There will be people who are both a) muslim and b) working for large multi national companies that require them to travel frequently for work, often to the US.

To block them from entering because they identify as Muslim is in no simple terms FUCKING RETARDED, and terrible for doing any sort of business with any countries in the "First World".

That practicality alone, and it's safe to say if this plan was given more than a few hours thought there are other scenarios and practicalites that blow a hole straight through this are why this not implementable. On top of that it's morally shite and goes against everything the great ol' USA stands for and no doubt violates one of your ammendments that you like to hold up and protect vigorously whenever it is convenient.

Your potential future president is looking more like an international clown as the days go by, and has all the potential to be more of an embarrassment to your country than Dubya ever was.