We go between two countries. We're an international family. For a long time before kids we managed to visit one set of parents every other year. Then we had our first DC and it was my DM DB AND DMIL for the first couple of Xmases.
My DPIL are acrimoniously divorced. My dFIL wants to come to us this year but: we took a couple of years away from our DP to enjoy our kids on our own.
Then we went to DFIL's house as it was the last time we'd be there. He had his partner and her family and grandchildren there - without probably meaning to they made us feel second rate to his partner's family. They've made us feel the same way over summer.
My DM is a lot older than DPils. She has had a bad heart and surgery this year. I would love to combine the families but my mum and DB won't come if FIL is there. I understand why: he's anti our background. I want to tell DH that my DM comes this year and Fil comes next. I was bullied into Xmas with his DP just before my DF died. Unforeseeable. My DM is close I think to being in a dangerous health situation so how do I tell DH to tell his own DF to F off?