What should I do about my Mother in law problems?

Okay so my mother and law plus father and law are really mean people.They So call theirselves being church people. They try to run my relationship with their son. I have a younger sister that’s really close to me and they went so far as to lie like she was trying to get with my husband.Just because they know her daddy and he had went off on them for saying she was going to go to hell for not going to church every Sunday. But they lied so we could band her from our house. They ruined my husband’s child hood because they took him out of school and home schooled him, they would not allow him to have friends and they had 10 kids in all. They said the reason they took him and the others out of school was because the world is evil. They turn the bible around and try to make it fit their lifestlye and everything. The problem is they try to run our relationship by saying certain people can’t come. They be on the phone hollerin at my husband sayin he should have married a church girl He does not like them but at the same time wants to respect them because they are still his parents. They beat their children like dogs and the daddy is very mean and cruel. One day he lined all the kids up and said raise your hand if you think your mom is fat? Everbody did except my husband and he got beat!!!That happened when he was younger. The doctor also told their mom after she had the tenth baby if you have another one it might kill you and guess what the daddy said??? “Well if you die your going to die doin the right thing, obeying your husband and if I want you to have another one that’s what your going to do!!!”What do yall think about this?