The 50s were objectively a time of prosperity and entitlement for the US. It's literally why they're called "boomers", it was an economic boom. We had high taxes on the rich, people saw those tax dollars translate into quality public services like highways, corporate competition was high, education was affordable, housing was plentiful. It was undoubtedly the best time to be a while male in US history.
And then capitalism did its efficient best to buy up the govt and begin squeezing all that prosperity into their pockets. And here we are.