How about this.. sit every teacher who says this stuff down at a desk with pen and paper and ask them which is more racist, trigonometry or differential equations, and ask them to show their reasoning and all assumptions derived as part of the process.

Now repeat with algebra and circle geometry. Or integration and set theory. Or pythagoras and complex numbers. If they cant show this, fire that teacher.

Soon you will have proper teachers remaining who dont have communist hands up their ass using them like a meat puppet. And we can all return to sanity.