It's a Muslim ban, they say, and you can't do that.
By the time this is over it will be settled law that the First Amendment, as understood by liberals, controls immigration law as well as presidential discretion regarding passage across our borders.
In the long run, that may not be such a good idea.
There is no essential difference between religions and cults except that CMW says we are to respect the former and deplore the latter.
Recall Jim Jones, David Koresh, or the Japanese sarin gas subway attacks.
But there it is.
Nobody really gives a shit about the long run.