Relative wackiness of belief systems aside…

In a country that anyone can start their own religious based private school why do the creationist folks keep insisting on making the public schools the vehicle of teaching their doctrines?!

What is it about public schools that they do not get?

Don’t they realize if they get their way they end up creating the very mechanism that can turn on them and destroy their freedom of association, freedom of speech and freedom of religion?