"Which leads to a wider question, why do we allow the nutcase lefties to spread this bunk through public school curricula?"
I suppose we let them, because we don't make the effort to just say "no".
From time to time, I read about how some idiot education bureaucrat tries to bully a homeschool family, ie, demanding that the credentials of the parents be proven and the curriculum be approved. This is of course patently illegal in most states, but what the hell, right?
I often think about writing my local school district and demanding, as a taxpayer, to 1) review the credentials of the teachers, and 2) to review the curriculum.
I'm pretty sure I would be giving out a lot of F's.
They would of course be shocked that a mere taxpayer would have the audacity to demand a review.
Why shouldn't we though, in principle?