Do you have any plans to break the cycle by taking the necessary steps to end their control over your adult life and stop contact with the toxic relatives who have made your life a misery for so long?
Or do you plan to obey their demands and suffer their bizarre rules & coercive control for the next few decades/rest of your life.
Allowing them to make the life of any future children you have just as miserable as yours so that 25 years from now, one of your teenagers feels that their only option is to write a similar post to this one on a website like TSR.
I do understand some of how you feel.

I was raised in a toxic and controlling household surrounded by unreasonable people who constantly imposed themselves and their demands upon me.
No peace, no privacy, no independence and very little freedom.
Never allowed out alone, even as an 18 year old.
Lots of banned foods, words, people and brands.
My mother was violent and in the habit of collecting the most predatory of pals then appeasing their dangerous nonsense, mostly
criminals or religious weirdos.
I learned to walk in the hope of getting away from the lot of them, couldn't crawl away fast enough.
Eventually escaped before a levels were over 9 years ago and will never go back or speak to any of them again.
My only regret is that I couldn't get away earlier or take my lifesavings with me (mother stole them trying to prevent me from being able to leave).