My brother-in-law and his wife of 30 years are in the middle of a very nasty divorce (all his fault in my opinion) and he is having a classic mid life crisis and making disastrous decisions. My in-laws and my DH are all pretty much siding with him despite his soon-to-be-ex wife being almost suicidal and their three university age kids aren't talking to him. I however find it very difficult to listen to them all acting like he is the victim and not supporting the wife in the way I think they should. This is causing a huge rift between me and the rest of the family. I can't be specific about my bro-in-law's behaviour but be assured that anyone not related to him by blood would be horrified. I am dreading Christmas Day as in-laws including bro-in-law are coming to us.
You're not obliged to fall in with your in laws you know. You can have your own opinion. You can't expect them not to support him though. Blood is thicker than water and that's what families do. Youi have your opinion, they have there's...I don't why it should cause contention between you all.