I understand the desire to get even, but it isn’t likely to happen and it isn’t likely to be satisfying, even if you succeed. You should focus on things that will make your life better and not things that will make someone else’s life worse, even if they richly deserve it.

You are going to have to make some compromises. You are currently putting up with a situation you don’t like, in exchange for the salary, side benefits, and location. That’s isn’t necessarily a bad tradeoff, but it is not likely to be a good long-term situation. Once management decides they have a problem with you, things are going to get worse sooner or later. It will be better for you if you leave rather than being forced out.

You need to make some decisions about which of the things you like about your situation you would be willing to give up for a better job. That will tell you what to do next. Maybe the answer is to hold out for a better position within your current organization, although the chances don’t sound good. You may need to take a salary cut to find a local position that’s better for you. You may need to move. You may even need to change careers entirely.

The key is to make your own decisions and not allow others to force them on you. There are a lot of factors you can’t control. Focus on the ones you can. And don’t stay in a bad situation with the hope that everything will work out the way you want it to.