Perhaps schools should just teach the useful stuff.
Rather than faith based possibilities.
The World is full of speculative fantasy crap anyway, so in the long run there's no way it can be avoided.
And a court' whether it be supreme or not so supreme, is always going to be limited by the mindset of it's participants.
I would suggest that impartiality is either a pipe dream or a lie.
So ultimately there is the State and there is religion.
Therefore, is it reasonable to suggest that religion can be put in a cupboard and occasionally forgotten.
Everson V Board of Education is just legal waffle for those with an interest in legal waffle.