Divorce was harder to obtain in the 1950's. Since you have asserted there would be more violence and murders, we could use the 1950's as our guide to what would happen today.
In the 1950's, we didn't have more guns than people. That's why we have more violence and murders today.
We could also talk about how in the 1950's, the work force was 40% unionized,and working men brought home good pay..
It seems that you want to turn back the clock selectively.