Don't watch Curb Your Enthusiasm. It's purely cringe comedy with very little in the way of other humor. I personally like that style, and even I have to stick to a single episode in a sitting. There's something wrong with Larry David because he's said many episodes were based on things he really did.

Humans being stupid?

Yes, that's part of the point, like with Michael Scott being grossly underqualified for his job but landing it by accident and thus doing some unethical shit all the time. That's where this meme comes from.

Just like Seinfeld pivots on narcissistic and selfish people living in a terrible world who don't seem to grow from their experiences.

The cringe is the original point of the show. It's even very toned down in the US version compared to the UK one.

The original The Office is a very niche thing, definitely not for everyone, and i was always a bit surprised that the US remake got the success it got.

If you want to be deeply infuriated you should watch "Extras" which is the show Gervais and Merchant did after the Office. It's like a horror movie that's so terrifying you have to hit pause - except with cringe.

OMGF you would have hated Laverne and Shirley. When I was a small child mom had a diary entry of me saying it was hard to watch because I felt embarrassed for them. Stay far away from 70s TV my friend.