Hmm. I think my personal answer to what is the destroyer economy is actually gerontocracy. A society that doesn’t give its elderly graceful exits ends up with a minority of gerontcrat psychos holding on to power and choking the economy.
Age limits on powerful public offices plus legalize euthanasia.
Public offices are uniquely suited to capture by interchangeable gerontocrats with no special talents and just a longer lifetime of accumulated network capital and owed favors to trade.