I don't agree with this blanket statement. The internet is low trust for lots of reasons, but regular (read small, proximal/spatiotemporally constrained) communities still exist and are not grifters all the way down. Acknowledging that distant strangers are not trustworthy in the traditional sense seems reasonable, but is categorically different than addressing natural social groups (small and local).

Yes, and most young Americans are locked out of those small, high-trust suburbs due to high housing prices. So instead they get to experience the magic of low-trust America first-hand, hence the disconnect between the young and the boomers.