Define "high-trust" community."
Discussion
A community where you can leave your door unlocked, your bike in front of a shop, people leave money on the counter for goods, you don't need to ask twice for help, etc.
We won't be alive for that!😅 I hope you're correct, though.
Fukuyama's "Trust: the social virtue" is well worth a read, whatever you think of his later works.
I should add that to my too long list.
Fukuyama is very cautious and unwilling to be drawn in his conclusions, but his research is top-tier and he's a good writer.
I would go further than he, and say that based on his volumious gathered evidence, lack of trust in a society today is highly correlated with deliberate past government programs to destroy cultural capacities for building non-hierarchical non-intermediated social links.
Fix the incentives, fix the culture, fix the trust.
I've heard that about his work, though I've never read it.
I think your conclusions are very sound, from my perspective.