It wasn’t until the 1960s that the sexual revolution occurred, class division skyrocketed, drug use was normalized, Bible readings and prayer were prohibited in schools, the nuclear family entered its death throes, New Left ideals flooded college campuses and the youth, and society otherwise began to experience social degradation… So yes, the aggressive, nihilistic society we live in today isn’t particularly fond of the “backwards” 1950s (or the decades before it), and will happily slander it.
I never lived in the '50s (far from it), however I can see why mainstream society detests it so much; it may have had its fair share of problems, however it was a period of stable families, clearly defined gender roles, economic prosperity, strong work ethic, Christianity was on the rise, etc., which is all quite attractive in comparison to the divisive mess we’re living in today. I’m not sure how any Christian could say with a straight face that society is better off today.