Socialism never took root in America because the poor see themselves not as an exploited proletariat, but as temporarily embarrassed millionaires. - John Steinbeck (disputed)
This stance fools the left into thinking they need to tell the working class that they are losers. People react badly to that; they will happily forgo new welfare programs and regulatory subsidies and will instead rail against the status assertions behind it all.
Which brings us to Trumpism...