I would support a test about an immigrant's level of religious zealotry. For example, if they say living a lifestyle different from their own and within the confines of the law, such as a gay lifestyle, deserves to be punished, then they can stay in their backwards ass hell hole.
As for people who believe that who are already here, there's not much we can do about them but be patient as attitudes continue to shift and the old hatemongers die off.
Good, that's a start. Now , you do realize that when Trump called for a temporary ban he specifically said "until we can figure out a real way to figure out who we're letting in" aka implementing some testing like you just suggested
That's a real question btw, were you aware that is actually what he said? As opposed to what some media reported