Are teacher's unions evil? The answer is yes.

https://www.theepochtimes.com/are-teachers-unions-evil_3897873.html

"The transfer of raising children from the family to the state and its agencies, in this case the teachers’ unions, is a dream of Marxism, a fulfillment of the “dictatorship of the proletariat,” which in practice means the dictatorship of the Communist Party. Teachers’ unions, with their advocacy of racism and their rejection of parents’ rights, are playing a major role in “divide and conquer,” the conquest of America by Democrat socialism."