The point is that what used to be legal (like say, visiting from a "Muslim-majority" country for tourism or to find work), or what should be legal, isn't... wit

The point is that what used to be legal (like say, visiting from a "Muslim-majority" country for tourism or to find work), or what should be legal, isn't... with bigotry and anti-intellectualism at the heart of it. Economics have nothing to do with it aside from the fact that an economy gets bigger the more people who participate in it - as in - we need more people, not less.