In its final days in office, the Biden administration finalized a rule to eliminate nearly $50 billion in medical debt from 15 million Americans’ credit reports. But the rule betrays a complete misunderstanding of health economics — and like former President Biden’s other market interventions, it may only serve to make Americans worse off. Medical debt simply isn’t the crisis many have made it out to be. A recent analysis from the Peterson-KFF Health System Tracker found that just 8% of American adults hold medical debt. Among those with outstanding healthcare bills, roughly half owe less than $2,000. Just over…