There is a difference between "reasonable accommodation" for students during the secular school week, and entire separate religious school boards with mandated religion in their curriculum.

Nobody is suggesting that Muslim teachings be part of the public school curriculum.

If Christian or Jewish (etc.) kids want half an hour a week to pray, they can have that as well under the current rules, in public schools.

There is a difference between forcing all kids to recite the Lord's Prayer, and letting kids get together as they wish, to pray.