I hear you there, Rosie, and I'm sorry for it.
This year has been a surprisingly easy negotiation. my parents are coming Wed-Sat, and we invited my ILs for Sat-Mon (retired). My ILs declined. My parents are coming the weekend before christmas, my ILs are coming the weekend after christmas. Easy done, then.
No one seems fussed about anything.
If anything, I feel a bit. . . unwelcome? It's weird. Everyone is glad that we are back, but no one is that interested in us, really. So strange.