No "ideology" can claim a monopoly on mental health (or ill-health).
But observationally, my tally counts more healthy, happy, accomplished people on the "conservative" side of thought and behavior.
Granted, what I witness and speak of is anecdotal. And when "Progressive" paucity of accomplishment where "good intent" abounds is concerned... well fault me for "bias" or whatever.
But it remains, looking at results (both individual and collective), one "side" shines brighter than the other. And where it shows darkness, well, as they say... misery loves company. The afflicted do bond together in their misery. And yes. They'd rather you be miserable too so that their own failure and sickness can be excused, personal responsibility erased.