Government schools are inherently evil institutions, and forcing children to attend them is also evil. But some teachers are part of the anti-fascist Resistance.
Think of Schindler’s List.
Implied is a comparison of the government's police enforced K-12 schooling to concentration camps. The comparison is appropriate.
Your comparison to Schindler is that he did not willingly seek, train for, and apply for his job as a slave driver of Jewish workers. He was pushed into it. Government teachers willing seek their positions of enablers of godless spiritual destruction.
Are their some “good” government K-12 teachers? Yes! But, I have never met one.
A “good” government teacher is warning every parent they meet to **remove** their children from the government schools. They are speaking out against school policies that harm children spiritually, physically, and emotionally. They refuse to join the union. Good government teachers are harassed by being given the worst school assignments. They are never promoted to positions of influence.
I have never met a “good” government teacher.