Sounds like you’ve got a good kid, he’s clearly able to see through bullshit.
Don’t be pissed, don’t give them any of your energy. Easier said than done, but at the end of the day it’s up to you if you’d like to play their game or not.
All you can do is have a convo with the teachers and let them know how you really feel. Maybe get other like minded parents to take a stance as well.