First, it's wild that's how you define "counterculture" as it stands these days when, 20 years ago, the deconstructionists and cultural Marxists were what was considered to be "counter culture" and a lot of them are still probably convinced that they're part of the "counter culture" to this day. I'm not saying you're entirely wrong, mind you. It's just an insane consideration in light of the last 20 years.
Second, you basically explained how these people allied themselves in "common cause" even while saying you don't understand it. Like it's been pointed out several times this whole thread and in the last few pages alone, these people also basically preach the mantra of "LET ME ENJOY WHAT I WANT, BITCH". It's just that, instead of enjoying a thing as they want, on their own, in a way that harms nobody but themselves, they ALSO want it not only to become publicly acceptable for them to enjoy what they want, but it should be celebrated, exalted, and, "better yet", EVERYONE should have to adapt to and embrace their obsession.
I wonder if that might sound familiar to anyone else, because we've seen this happen before from a societal standpoint with other matters.