In the US the cost of healthcare is so ridiculous that underwriting the system and bargaining as a unit for things like equipment, disposables, and pharmacy will save the entire system billions of dollars of overhead/profit/graft (depending on your viewpoint) that currently go mostly to insurance companies and private equity healthcare groups. At some point you will be right that the harm outweighs the good for a sizable group, but we aren't there today.

> You could argue that 4-6 aren’t real objections either because most people aren’t in those fields either.

Way more money and influence though.

> Way more money and influence though.

Bingo. 50 million poor people have less lobbying clout, ie dollars, than the medical or pharma industries.

It’s no coincidence that the ACA provided for money for insurance, without actually increasing the supply of actual medical care. Increasing insurance increases demand, provides a way for the existing industries to get paid, and overall raises the cost of care.

Now had they had a lick of sense and simply spent the same amount of money on setting up clinics (ie supply side), you’d see a drop in prices as existing providers would have to compete with a lower cost option.