Convince me to support single-payer (US)

This issue was raised in another thread recently: Medicare for All: What to be done to reduce fraud?

Here’s how I responded:

Note that in this approach, it’s purely an issue between the medicare agency and the doctor. Even if the doctor has been found to be over-billing, it doesn’t affect that doctor’s patients. The medicare agency sues the doctor to recover the over-billed amounts. It might be your doctor who has over-billed, but you’re not involved, and the medicare agency doesn’t come after you for re-payment. It’s just between the agency and the doctor.