The US has by far the most expensive healthcare in the world, and for all that expense, achieves outcomes comparable with the third world.
Negotiating with providers as a single payer massively shifts the dynamic by putting the negotiating power in the hands of the people representing patients, and allows a huge amount of bloat to be removed from the system - like the entire insurance industry.
Single payer will deliver huge savings, better healthcare, and better access. The people that lose are the grifters draining the system for profit.
Was the mistake that it gave him a crippling humiliation fetish?