Teachers being politically unbiased/objective in the classroom

History has shown that the denier side (and not only regarding climate science) has and continue to push drivel to get their way.

And if you think this has no relation on the subject of the thread, that would only show that a lot of history on what the industries are/were doing in the classrooms is not known or ignored.

As the Merchants of Doubt report/book/documentary reported virtually the same tactics, experts and groups are pushing drivel to our education system.

The Harthland Institute for example continues to push for what is now old drivel:

My bias has the qualifying statement that its also factual. Many things that liberals believe in are objectively factual, like global warming is happening, and humans evolved from lesser animals. Teaching those things is not bias, its fact.