Your question has no bearing on my position.
Au contraire, it has great relevance.
Generally, Christians who want school prayer back
don't imagine that allowing their prayers would also
mean allowing competing religions.
This illustrates the problem that many people want
their religion institutionalized in public schools, but
not ones they dislike. That poses major constitutional
problems for the courts, ie, some religions must have
favor compared to others.
But if a Satanist wanted to kneel on the 50 yard line after the game and hail satan, as long as nobody was being forced to participate, then by all means, let him.
We're not talking about just
any Satanist, but a coach or
other school official, who may now induce others to
participate (as did this guy).