My BIL has really upset my SIL doing this.
BIL lives in a massive detached 5 bed house. His sister lives in a small 3 bed semi.
BIL and his wife keep buying the biggest presents they can find, despite SIL making a comment about space. We've as directly about what they'd like and SIL said directly they don't want big gifts because they have no where to put them.
We've been to see BIL last weekend and we've been given gifts to take to SIL next week. If we'd been in my car, they wouldn't have fitted in. SIL is going to be seriously pissed off.
They done the same to us before we moved to our current house. Just totally ridiculous gifts and usually just the thing on offer at amazon that week. There isn't any thought to it. I've made a point of buying things with sentimental relevance where I can.
We've also previously tried to tell BIL not to do presents for adults. We didn't buy for them one year after discussing it with them. They turned up with presents for us.
They are utterly tone deaf. It's about them not buying for the receiver. They have a thing about showing off status. We just think they can bore off with it and they are sad cases. If you spend £30, they will make a point of spending £50.
For SIL it just embarrasses her and rubs it in her face that her brother is much more successful than her.
He's also bought noisy musical type presents when she's explicitly asked him not to before too.
We've agreed to get SILs kids something small to open and then have a bit of money to go do something with them at some point.
I believe that people like BIL who are this tone deaf can't be told. They will keep doing it with a "but it's only" or "i just thought" when of course they didn't think. It's all about them and their ego. Or point scoring.
At this point we are economically as well off as them if not better off and DH's career is at a comparible level. BIL has to be the best for everything though. He hates the thought of his siblings doing anywhere near as well as him. He's in his fucking 40s ffs. And he's still doing this competitive shit and trying to dominate them. It's eyeball rolling immature and we stopped playing a long time ago because we are secure and have nothing to prove to anyone, least of all him. Hyacinth would be a good nickname for him.
Ive taken to never letting DS open crap we have no space for or he isn't bothered with or is just tat now. I either 'disappear them' or put in a pile and see if DS asks, until I just regift them or give away.
My point here is, just get rid of stuff to people who will appreciate what you are given. You aren't obliged to keep it.
Its not worth the argument. They don't get the problem because if they did they wouldn't do it despite you making a comment or telling them outright. If they don't listen they've put you in a position where you don't have much of an option, because they've already removed your other choices. In BIL case it's emotionally manipulative.
I don't think its ungrateful. It's just them being fucking ignorant and rude but dressing up as kindness. That's massively passive aggressive.
I don't quite know how SIL is going to react to the unwanted gifts. It's dead bloody awkward. We had planned to go to hers in my car...