This is so off base. Please provide the citation for these assertions. The implication is that cruel insults somehow is people acting naturally. That is merely defining deviancy down.It sounds like the way guys acted in the past made them stronger and more resilient which would explain why rates of mental illness were much lower than they are today. I think you provided good evidence that PC softness and sensitivity may be making people weaker and more likely to develop emotional problems/mental illness. You make a good case that we should go back to encouraging people to be themselves and act naturally.
As one receiving cruelties, sometimes given with a smile, and aimed at areas where I felt inadequate as a consequence of my neurology, they certainly hurt me. I ended up battering those that acted so naturally with whatever weapon that was handy, eventually getting into some real trouble, but when the judge looked into the behavior of those scum compared to my reputation, charges were dropped.