The fact of 100 million dead in the 20th Century constitutes no proof whatsoever for True Believers in the Church of Collectivism that their ideology is profoundly at odds with human nature and leads inevitably to tyranny and death.
These "teachers" should not be allowed anywhere near a child for the same reason as sexual predators: they poison minds, destroy spirits, and molest the good.
If you all sense I'm angry - you have no idea how much I hate these people. It is one thing to spout drivel to adults who can make their own independent judgments; it is quite another to seek to indoctrinate the young by denying ability, punishing independence, turning smiles into scowls and open minds into closed alleys. Hell is too good a punishment for those who treat children like this.
"turning smiles into scowls and open minds into closed alleys"
well put.