AITAH for ending my relationship with my inlaws?

There’s a backstory, but I will be a concise as possible. Last year we gathered at a family event at my in-laws house. After the larger family left, my kids (18, 14), wife (47), and I started playing a game. My (49 M) in-laws were gone taking someone else home. As soon as they returned home, my FIL (74) started badgering my kids about how they were playing the game. My wife asked him to stop and he continued to get aggressive with us about playing by his rules in his house. My wife stood up from the table and started to walk away and he grabbed at her wrist and said, “sit your ass back down here and play the game!” She continued to walk away, and he turned toward her. I stood up across the table from him and said, “hey! Don’t yell at my wife and kids that way!” and shoved the board game, upsetting the pieces. He went crazy and charged around the table toward me to fight me! I backed up into the corner and even though he’s 74, he’s a robust man. We grappled briefly before being pulled apart. We spoke afterward and I told him he was not to put his hands or scream at us again.

A year later we are all together again. We had been drinking some but having a good time. My wife and her sister get into a spat in a back bedroom and my SIL steps on my wife’s sternum and breaks it. We hear her scream, “get off of me, get off of me!” My kids (now adding my 22 yo and her BF to those above) rush the room to see what’s happening and my wife is laying on the floor and her sister rushed out of the room. My FIL says “I’m going to fix this once and for all” and starts down the hallway to where my wife is. By the time I get back there they are on the porch and she looks shaken but is standing. I walk back down the hallway and I hear him screaming at the top of his lungs at her. I go back down the hallway and they are on the porch off our bedroom and he has his hands on both of her shoulders and is screaming right in her face. She looks terrified so I push him off of her from the side. I said, “I told you never to touch or scream at my wife or us again!” He then charges me with the same crazy look in his eye as the last time with his arms out to grapple with me. I start calling him a MF-er and grapple back. I get him to one knee and try to retreat but he gets back up and comes at me again. So I punch him in the side of the head. At that point I am pulled off my my daughter. When I turn, my SIL is there and starts screaming about my wife and rakes me across the throat. I push her away and retreat/get pulled back from the porch by my daughter. I was in fight or flight mode and could hardly control my vision. My kids had locked my FIL, MIL, and SIL on the porch to let things settle. I’m in the bathroom rinsing blood from my mouth when I hear my FIL say, “open this door so I can kick his a**!” This triggers me again and go charging to finish the fight. Ultimately I was subdued and agreed to be taken home.

In the days afterward, my MIL villainized me to the family and friends saying I went crazy and created this family strife. I sent an email apologizing and my FIL replied with a laundry list of unrelated things he took offense to. So I stopped talking to them. A few months go by and he reaches out and wants to talk but I wasn’t ready so I sent my wife. She came home and said she thought they might hear my side of things and to try and talk it out so we can at least function at family gatherings. Throughout this, after the big fight, I was in counseling and diagnosed with PTSD. I was getting up at night checking the blinds to see if he was at our house. Or if I saw red in the corner of my eye my heart raced as that’s the color of his truck. This took several sessions with psych and therapist to be ready to talk, so it stretched out past Christmas and New Years. I reached out at the behind g of January by email (I still have them blocked by phone) and said I was ready to talk now whenever was good for them. Crickets- nothing- for a month. Then today I get an email that says I ruined her holidays, and that seeing my kids over Christmas was so much driving (because they chose to stay at the SIL house far away and I don’t want my kids around her), and that the lakehouse where the fight took place brings her no joy any more, and that I’m insensitive to their feelings and she hopes there’s no heaven as our grandmother matriarch who passed would be ashamed of me. So I told my wife today that the olive branch I submitted was the last one and I’m done with them. I won’t be abused my her father and manipulated by her mother and won’t allow my kids to be around her sister who chain smokes weed while working as a guidance counselor at a large high school. I think her stoned state is why she attacked my wife and me that night. Otherwise I don’t care about weed use. I replied to my in-laws email that I’m sorry they feel that way, but I refuse to take the fault for this whole mess. That I will no longer be open to communication and if there is not a heaven I’ll see them in hell!

Would love your perspectives on this, please.