If something exists but people aren't using it, it isn't the right solution. It might be hard to say why it isn't, it could even just be a marketing problem, but nevertheless the problem isn't solved by its existence.
I live in the mid-west, where these organizations were very common. I'm ~50 years old, and I don't know ANYONE who's in one of them, and every one of them around the area that I drive by is in disrepair. I expect them to disappear with the boomer generation.
Another feature of my location are all the small "mainline" churches (Presbyterian, Methodist, et. al.), who hover around 30-50 people, and have no members younger than 60. There's a business opportunity coming to buy up a lot of prime real estate when these churches fold in another 10 years.
I think a huge problem with finding "community" now is the utter isolation caused by social media and access to the thinnest slice of the news you want to tolerate. It has created a culture where people are only tolerant to their SPECIFIC view of the world, and it's just really hard to find people who think EXACTLY like you.
I actually tried to join a couple of those sorts of organizations, and I found them all very off-putting. Between the weird elitism, the arbitrary and time consuming hurdles for membership and the feeling that everybody there felt 20+ years older than me (even when they probably weren't) didn't make it seem like a good time.
I like the concept though, I just wish there was one that felt more up to date and actually felt like a sort of thing I'd want to join.
I think just talking to an Apple dad about his life and priorities would be extremely eye-opening for a lot of people on HN.
For the tech and maker types, a hackerspace/makerspace might be more appropriate.
Part of the problem is many are invitation-only clubs. That kept them mono-culture and full of the 'right people'. And the current members have at some time quit inviting? Don't know why.
Even here in the Bay Area I live just a couple blocks down from a huge and well-appointed Elks lodge, and just a few miles away in downtown Mountain View, there is an Eagles lodge across the street from an Odd Fellows, itself a block away from a Freemason lodge.