Sept. 11 brought out greater kindness in us to strangers. After 9/11 I immediately noticed increased kindness in the simplest of things, holding doors open, courtesy in public.
The coronavirous has had that same effect but even more intense. I see strangers concerned for the well being of others, not just in terms of social distancing but myriad acts of personal kindness and a genuine interest in the well being of others.
I don't believe this is unique to the U.S. but is representative of normal human values. The most oppressed people in the world still love their family and their countrymen.