I've name changed because my sister might see this.
We normally alternate at christmas, either my family or husbands family. over the years it has become that our siblings have all aligned so it is a big bash each time.
Last year was my family's turn. At the last-ish minute restrictions changed but we still saw my sister, and other family members didnt come. (I cant remember if my sister was going to host all along)
So this year we think it is husbands family, and so do husbands siblings etc. My family are saying that last year didnt count and they are all doing this year, and we are ruining the system if we dont fall into line with this and we have ruined it now FOREVER.
Before I say any more - i will open it up for views.
so
YANBU - you are right it is your husbands family turn
YABU - you should go to your own family
Before anyone asks, no we wont split up, we have 3 primary kids, for whom christmas is actually designed imo.