How to tell sibling I don't want to buy presents this year

[Toothyfruity]

I have 1 brother who is married with 4 children. I am married with a new baby.

For the last 3 or 4 years my brother has not gotten us Christmas presents. He says he intends to and forgets or doesn't get around to it. They also haven't gotten my parents presents in recent years despite receiving significant support from them. They're not stuck for money though none of us are wealthy.

Every year I get them and their children presents. They never thank me. I also buy birthday presents for their children and don't get a thank you text or anything for those gifts either.

So this year I'm not arsed getting them anything and want to agree with them that there'll be no presents. I suspect that they'll suggest we only buy for the kids. Frankly I don't want to do this because they have 4 and I have 1. Also he will probably not actually get anything for my son going on past performance.

Is there a nice way to say that I don't want to buy for the kids either or will I sound like Scrooge?! We'll all be together for Christmas day so it has to be addressed.

We get on very well and have never had so much as an argument so I don't want to be rude or make things weird.

We have this the other way

me and the in laws agreed to just buy for the kids to save money (and we were exchanging the same gifts- a bottle of whiskey and a bottle of baileys)

I don’t know why but the first year they said it I bought their presents as normal. Luckily I did as they actually bought for us. Every year we have the conversation and every year they have bought for us (presents are opened at our house and we hide theirs to the back of the tree so they wouldn’t know the gift is for them as they are with the other family outside the household presents). I always figure the worst happens and they don’t buy for us that me and my husband can just open their presents (which we would have got off them anyway) 😂

I posted on another thread as I have the same issue!
I think in their heads they have bought the imaginary gifts and everyone was delighted. Otherwise I can't think why they'd carry on with the presents scenario

In my case its now worse as the oldest of the kids is now 18. So its harder saying "not buying for adults" when they have to watch their siblings open a gift

Last year I just sent generic Lush Christmas gift sets to the kids. No response/ so no idea if they liked or hated them. Hopefully the 18 year old will be thankful they've missed their aunties dull presents.