The situation’s gotten worse over the years... but if it’s gotten worse it can also get better. There’s hope - the mess isn’t cast in stone.
Some incentives have to be identified and switched... (true of all failing systems) - because everyone in the school system is worth saving... kids - teachers - all of ‘em...
It’s overly-liberal “liberal” (turns out being illiberal) philosophies at fault. Philosophies which assume people are just somehow born inherently good.
People can quibble over the scientific details of how it played out, but the deepest and truest moral story about where we are today, is the Garden of Eden story. God gave humanity a chance; humanity muffed it. Some, coming out of that tragedy, will choose a heart that will reconcile with God in the end. Others will choose a heart that lives it all for themselves, even though that means being set on evil. But no mortal comes here innocent.
School that knows no idea of discipline of any kind, is going to be a failing proposition.