I don't have a problem with that, and I don't have a problem with teachers bringing their own personality to the classroom. I am not vegan, but if my kid has a vegan teacher that would be valuable in exposing them to that world-view.
I do object to political interference in education. When the govt decided what material is OK, and what is not, then you remove the variety of thought which exists in the world. And ultimately that leads to a lack of personal critical thinking which leads young (and older) adults to belive anything.
It is hard for the government to control the school system and also for the government not to exercise any control over the school system. I think you might be advocating voluntary, private-only schooling here - although I also think you might disagree with that opinion.
I guess my primary point surrounds censorship, especially when it comes to dictating what teachers can say or teach (in addition to, in the context of, not necessarily in place of the cariculum)
Assuming you mean what you wrote, you may be arguing for abolishing the public school system. In principle that seems like an interesting idea, but the rest of your post isn't quite congruent with that so it seems possible you've missed that this part of the thread is about school curriculum.