Several problems here:
1. We don’t have the time. Too close to collapse/dictatorship or full Marxist control already.
2. Re: taking over school boards. Sorry, not a bad idea, but it’s the teachers more than the boards. 80%+ of all teachers are Marxists. Conservative teachers are rare except in Texas and Oklahoma, other states rural areas. You can’t find enough conservative teachers.
That problem originates at the colleges universities - which are 98% Marxist.
So how are you going to take over the Marxists iron-fisted control of those who brainwash the teachers? Not going to happen.
And again, you are talking 3 - 4 generations.
I’m afraid your correct.
It would be generational. And it would not come without a fight from the Marxists.
They will not give up their “power” easily.