The government schools attract pedophiles like San Francisco bathhouses attract gays. And the pedophiles don't always become teachers - - a lot of them find other ways to get near the kids, such as by working for the teachers union or the school district administrators. Some of them even end up as head honchos! But the bottom line is that they just need to be near kids.
Naturally, the curriculum is going to include the subjects that are foremost in the minds of these animals.
Not ours. My uncle was accused of molesting a girl as a teacher (by a mom who abused drugs no less) and lost his job over it. We do need to make sure the molestors don't get in and pass laws to make sure they have the harshest punishments (especially if they are in positions close to children) if they are convicted.