Nice try, but even if we didn't impose an unconstitutional federal rule to mandate what you want, current federal law would still prohibit a private airline from discriminating based on religious affiliation.
Islam is clearly a religion. It may be a horrible one, but it is one. The fact that you deny it is pretty irrelevant.
It may be clear to you, but not to me.
That you are ignorant is equally irrelevant.
What about the new cannibalism-child molesting religion that we can create? Once we have a critical number of members must we also be untouchable? Or do you get the final word?