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.