To leave the mess. Even if it means DM can't visit on Xmas day?

[Messedupabit]

Single parent 2 adult DCs, 2 younger. For the past 3 weeks I have repeatedly told DCs I need them to help get the house sorted for Christmas. Older DCs were asked/told to sort hallway/stairs/landing. Younger DCs asked to do toilet/bathroom. Younger DCs have done everything asked of them. Older DCs have done fuck all.
I've stopped doing their washing as its hanging in the hallway, has been for weeks. Coats, shoes etc lying all over said hallway. Basket full of odd socks in hallway, post and packages on the stairs,unwanted clothes (on vinted apparently) dumped on the landing.
If it's not sorted my disabled DM can't come on Christmas morning to see DCs open their presents as she can't get through the hallway.
AIBU to leave it and give DC some responsibility for their laziness?

Dump it all on their beds. Why should your mum suffer for their laziness? YANBU to expect better of them.

Put it all in bags in their rooms. If they don’t sort it assume they don’t want it and bin it

@Messedupabit I hope your DC sorted it and harmony restored for yesterday

Pick it up and dump it in their rooms. So they still have to do it but she can still come.