I don't really follow this comments. It's a bit too rambly and circuitous for me to follow, and I gave it a few tries, but I do admit I'm not the best at reading walls of text.
From what I can tell, you're trying to argue that semver is useless while also saying that not following semver means that you don't get any benefits, but that just doesn't seem like a proper argument, so I'm surely misinterpreting.
I think SemVer is a social construct, but that most of the time we can predict what changes will be breaking. We may get it wrong of course, but that doesn't mean we should throw our hands up and not try.
From what I can tell, you're trying to argue that semver is useless while also saying that not following semver means that you don't get any benefits, but that just doesn't seem like a proper argument, so I'm surely misinterpreting.
I think SemVer is a social construct, but that most of the time we can predict what changes will be breaking. We may get it wrong of course, but that doesn't mean we should throw our hands up and not try.