Ultimately, I agree, and have spent a lot more time in many of these scenes than at Berghain.
However, all of them are fairly self-selecting in different ways that I think are difficult or impossible to achieve in a long-running, ostensibly "for everyone" institution like a techno club.
I understand you feel that way but materially it's incorrect.
You can be exclusive for exclusive-sake and you'll attract the dolce & gabana crowd and maybe that's what they want - people who will spend $500 on alcohol.
But as far as techno I've met all the Belleville 3, two of them twice and each time it's been at tiny spots with like $0-$5 cover.
I've even been to warehouse parties with producers big enough to have Wikipedia pages that are just honor systems where you promise to venmo the promoter and there is no door guy. Highschool kids could just walk in doing hard drugs and to be honest they probably did.
But then again, there's certainly pop techno and non-pop techno. Tiestos YouTube has like 3.7 billion views. That's a different problem than say
Legowelt with 200k.
However, all of them are fairly self-selecting in different ways that I think are difficult or impossible to achieve in a long-running, ostensibly "for everyone" institution like a techno club.