I have been in situations like that and it has never improved. I had to move each time and the last 15 years have been almost perfect.
Ive Learned that some Managers are Jealous..Mine shot down all My Ideas for improving production....
then a new guy came up with the same Idea....I just told him to do it..He made the improvement...and We all Benefitted from it
When the Boss Thanked him I laughed out loud and He looked at me strangely....Too stupid to remember He told me the Idea wouldnt work. too Hell with getting the credit...I was Glad because the fix made the Job easier to do.
this world is full of Idiots who should not be in Charge of anything..Like Democrats.
I agree. My current boss (me) is a huge improvement over a previous boss who was on an abusive power trip. Bad bosses (not critical bosses who are right, and you really do have something to fix, but bad ones who enjoy the power) don't get better. Move on, even if there is some uncertainty about job security in a new position. Also, relax while you are moving on - there is not much that even a bad boss can do if you don't worry about what he says as you find a new job.