They should just follow the constitution and allow us our freedom.
Release time religious education is the law of the land and legal by federal statute. It is available to all religious groups. At one time a satanist group tried it, but couldn't make a go of it.
The requirements are:
1. Student attendance must be voluntary, with written parental permission
2. Instruction must take place off school grounds
3. No state resources (taxpayer funds) may be expended.
I also might add, transportation is not provided, and the group assumes all liability for the children.
It works good in our area because, sometimes the people next door to the school will allow the students to use their building. Volunteers meet the children at the school doors, walk them over to the building, and then walk them back at the end. Having to transport the children with vans means less time for actual lessons.
The Christian RTBE site is https://www.releasedtime.org/. It has information on most states and their rules.

