With regard to US carriers I would support a freeze on the hiring of muslim flight crew in that they are an imminent danger to aircraft and passengers. Also baggage handlers and ground crew, which I suspect are currently all over the place.
In some airports the majority of ground crew and baggage handlers are muslim. Minneapolis and Detroit.
I’ve been thinking about such things. What I’ve come up with is this: we “Westerners” are checkmated by our own laws.
The only way to save ourselves is to destroy ourselves. (Constitutionally speaking)