Makes sense to teach the basics of most popular religions and those locally/culturally relevant. It’s just useful information. Helps in understanding other people.

I demand all school children submit to Zeus.

Yes. Only mine, which is none.

“every religion is fake except mine”

The education system is a system of the state and the state should be athiest to allay the fears of all incompetent morons who believe in imaginary friends.

All religions spend billions a year to make and maintain their own places of business (church/mosque/synagogue/etc), if they want to continue lying and manipulating their children they can do so on their own dime.

Everyone pays for the education system and the education system needs to remain objective and teach empirically researched FACTS.

If people want their religious texts read in school it can be done in a philosophy or fictional literature course.

Sure, we can teach all of them. You know, Baptist, Methodist, Episcopal, Presbyterian…all types!