Because government-run schools are "good", the MSM won't cover sex-abusing teacher stories beyond some coverage in local news sources. National-level MSM will be pretty much silent about individual cases and won't recognize the obvious pattern. The MSM wouldn't want parents to know of risks and possibly choose (Horrors!!!) private schools or homeschooling.
But if the abusers are Catholic priests ...
Also don't forget how the majority of teachers are liberal/democrat/moonbat.
There's been a slew of charges, arrests, and investigations of teachers down here around DFW for inappropriate relationships, CP, physical abuse (usually of SPED students), and even teaching under the influence/leaving their goodies in the car when the cops take the dogs through the parking lot. We have a huge number of unlicensed/alternate certification teachers out here as well, many of them pretty fresh out of college. Between too many being young and dumb and probably leaning left ideologically, even here in Texas, it's more reaping what has been sown. Teach people there's no right or wrong, they gonna do wrong.