Thanks for clarifying and expounding. I agree with you that no era has been perfect, there is a mix of good and bad, conditions vary by group (and region), and the changes since the 1950’s have been a net gain for most. I also agree that we have modern day problems that are more prevalent now than in the 1950’s, just as industrialization made many things better but also led to challenges.
My issue with 1950’s nostalgia is it 1) overlooks the serious inequalities faced by women and minorities and 2) romanticizes an era that had very serious problems. Sure, divorce rates were low back then, but that was largely because women didn’t have as many viable career options as they have now. Many women stayed in abusive marriages because they had no alternative. Domestic violence against women was so common that advertisers joked about it.
You mention modern day drug use, but alcoholism was much worse back then.
This article says: “In the 1950s, alcohol consumption remained an enormous political issue for many white American Protestants. “Inebriation continued to trouble many church-going Americans who considered alcohol consumption a genuine, serious, and growing problem to which abstinence was the only solution,” Pennock writes.”
And this one says: “What is considered heavy drinking today was more widely acceptable in the 1950's and 1960's, and was the norm in colonial times, when men, in particular, got drunk every day… Books and movies from the 1950's and 1960's often showed men getting drunk regularly on social occasions, indulging in three-martini lunches, and ending each day with a cocktail hour.“
So kids were more likely to grow up in a 2-parent home with their mother and father in the 1950’s, but the father in that home was often a drunk who beat their mother and/or the kids.

