My controverial opinion is that the "left" has more mental problems because of the therapy and pharmasutical industries.

Conservatives are less likely to see proffessional help but not help. They simply rely on family which imo has a better incentive structure than therapists.

Anecdotally I've watched a lot of people go down the therapy and medication route over the years. I've noticed they become more unstable as time passes. Maybe that would have happened anyways.

or

Maybe it's because humans weren't designed to spill our guts to strangers and then take prolonged phycoactive drugs to fix mental problems that science does not understand.