For people to suggest that government discriminate based on religious beliefs is so illegal and so unconstitutional, I'm surprised anyone would suggest it. US code 18 U.S.C. § 245 makes it clearly illegal. The courts have ruled on similar cases and found them either in violation of federal law or the constitution. In addition, many states carry language in their constitutions and state laws which makes it illegal.False Nazi comparison? Not a good idea. Were terrorist groups sending their terrorists through an influx of refugees into Nazi Germany?
So you do think we should have a database of all the Muslims in the United States and make them carry Muslim ID cards!
Violation of the rights of American citizens in the name of safety is just plain cowardliness.
President Trump will deal with minor nuisances like the Supreme Court and the Constitution!