Why not add satanism as a permissible topic? We don't make it mandatory, but it's ok to teach it in schools.
This is a transparent end around on separation of church and state imo. No one is stopping them from teaching that outside of the school system. If you prove it a better hypothesis then we can add to school curriculums. That's how I understand the process worked for a long time. I see no need to change it for your personal beliefs.