There are a large number of Americans who believe that immigrants are nothing but intruders. This attitude is heavily felt toward illegal Mexicans who cross the border.
But, many people also feel that Muslims should be restrained. They fear that Islam will overwhelm the USA and the Church of our Lord Jesus Christ.
Let us think carefully. Here is Thomas Schirrmacher from Germany speaking on this very topic. His message is exactly the same and in context in the USA.