Hmm, when I was a kid while at my friends house I had a small statue fall on my head from a bookshelf. I still have the mark from it. My parents were informed, and with two of them nurses they decided to just watch me for concussion. My parents didn’t sue them, just chalked it up to accident. A friend of mine broke their arm on another friends giant trampoline. Again, no lawsuit. These days parents will sue their child’s best friends parents for something like that. So perhaps there’s something different with modern Americans that has made them more likely to piss on their neighbors?
Unfortunately this is the normal ebb and flow of populations. And the stage the US is at we just have to wait for severe economic disaster to remind people what trauma is.