Well sure, I am only human after all, but trying to have a discussion based off of what I perceive is going on in someone's head rather than based on the merit

Well sure, I am only human after all, but trying to have a discussion based off of what I perceive is going on in someone's head rather than based on the merit of the argument is usually not a fruitful way to have a discussion. Further, I have personally lived through experiences where bad teachers have been protected by the union, including a teacher who made a pass at students but was ultimately protected by the union. Years later, that teacher was eventually let go, but it was only after said teacher made some unsavory comments on social media and the school faced a ton of backlash because of it. That experience did not change my view on unions even though I felt that they should have been fired a very long time ago.