You for realize I'm 72 in a few months, and have lived and worked on three continents in multiple countries, am not American (although I lived there for 11 years).
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Sorry, you're wrong. My generation did absolutely nothing about climate change. I read Rachel Carson in 1970. I have watched my generation smoke weed, support apartheid, vote for neoliberalism, and more.

Yes, there were one or two outliers

Have you seen the house Al Gore lives in?