Mandating what is taught is accomplished by running for school board and atte ding meetings.

Too many people don't give a shit about that, and then when teachers are given the curriculum to teach parents get up in arms.

Leftists are fucking ACES at getting involved and steering society's ships.

Parents who send kids to private school do their due diligence and on top of that, PAY. Public schools are at the whim of the board, which is up to the local parents to choose and pressure.