Inspired by John Steinbeck’s, “Socialism never took root in America because the poor see themselves not as an exploited proletariat, but as temporarily embarrassed millionaires”
Wikipedia disputes the quote saying:
the remark is very likely a paraphrase from Steinbeck’s article “A Primer on the '30s.” Esquire (June 1960), p. 85-93:
"Except for the field organizers of strikes, who were pretty tough monkeys and devoted, most of the so-called Communists I met were middle-class, middle-aged people playing a game of dreams. I remember a woman in easy circumstances saying to another even more affluent: ‘After the revolution even we will have more, won’t we, dear?’ Then there was another lover of proletarians who used to raise hell with Sunday picknickers on her property. “I guess the trouble was that we didn’t have any self-admitted proletarians. Everyone was a temporarily embarrassed capitalist.”