Gonna sound lame but the passages that really moved me were those in the beginning talking about the Native American interactions with European colonists, how some colonist couldn't stand their lifestyles and found a home with the Native Americans.
Also the section on war, how British officials thought the blitz would dissolve the people into barbarism when the opposite happened.
Couple this with declining third spaces and a government that increasingly does not care about people's mental health, something has to change and it's not like it would be hard to start public jobs programs again or encourage more civic engagement via workplace democracy.
From start to finish it's fantastic. It's not a highly scientific work though, it's more of an observation mixed with some autobiographical touches.