Some issues with your list:
#2 - Girls were girls and expected to know their place. People were not allowed to be individuals, but expected to be just like the rest.
#3 - Cars ran better? Plenty of cars run over 200k miles. Plus they are exponentially safer than the cars of that time. Add in the comforts of a/c, better seats, and more options make them far superior. Yes, you can find example of old cars that lasted. But unsafe and uncomfortable is not something I want again.
#6 - Without computers you did not have access to the amount of info you do now, your shopping choices were severely limited, and shortages were common. No records could be accessed quickly unless you were on the spot. And criminals only had to move to a new state to start fresh.
#7 - Pro athletes made decent money but had little control over where they played and for whom. And the runs of winning lasted longer because the inferior teams could not get the better athletes, since they were tied up for their entire career.
#9 - Blacks didn't riot when they were angry about a teenage boy being lynched or because they were not allowed to vote. Why? Because they would be violently abused, if not murdered.
#13 - And hospitals sent you to the morgue for things that are now treated in walk-in clinics. The level of medical care now is far superior to anything in the late 40s and early 50s.
#15 - Only Christianity was respected. Every other faith was treated like dirt. And the Christians felt fine putting theirfaith into laws that you had to follow whether you shared their beliefs or not.
#20 - Soldiers are well respected now. With the exception of a few freaks, they are routinely thanked for their service. Cops are much the same. Except now the cops are held to task for the crimes they commit. Back then, shooting a black man was a celebration.