I'm going to tell my boss her mandatory meeting was offensive and undervalues her employees
why are you going to tell your boss that?
it made me angry
You shouldn't be disrespectful to your boss because you're grumpy. You could get fired.
At this point I have stopped caring.
You could be fired if you treat her poorly. Do you think you could share your grievances in a nice way she could be willing to implement come changes.