Why did Trump issue a ban on Mu?

Trump is a typical nationalist. He has always stressed that the United States gives priority to and safeguards the interests of Americans, so it is tough on the outside world and restricts immigration to the United States.

Trump has always believed that Muslims are like Trojans to the United States, which is likely to threaten American ideology and national security. Therefore, measures should be taken to restrict Muslims, that is, to ban Muling.