Job Satisfaction
I say leave and find something else.
The funny thing about regret is it's better to regret something you did, than to regret something you didn't do.
I have changed companies within industries, and changed industries altogether multiple times in my life. 6 or 7 years is about the longest I have ever worked for the same company. The most fulfilling job I ever had was being a high school teacher, however my love for the job changed when my administration changed. It was also the least amount of money I ever made as a professional. Actually, I was moonlighting as a bartender while I was teaching and made more money bartending 3-4 days a week than I was making teaching full time.
Currently, I am making great money, doing unfulfilling work, but my management is truly the best people I have ever worked for. I know how incredibly fortunate I am with this role. Toxic bosses are the worst. I have worked in middle management in several industries and one thing that stuck with me from a "manager training" I once attended was "Most people don't quit jobs, they quit managers" or something to that effect. All the jobs I have ever dreaded to go into had poor or toxic management.
If you don't leave, don't follow Hitler.
Good luck!~