VA hospitals and health service in general has been poorly funded for ages. A poorly funded public system along the model of the VA, one that isn’t properly funded to serve the size of the population it’s required to serve, will function poorly. Obviously a national model would ideally work much better. It’s also possible the VA is too centrally controlled, instead of things being decided more by local VA entities and providers.
The biggest reason American healthcare is 17.5% of GDP instead of 11% has nothing to do with insurance companies (their profits / administrative overhead are actually a small, small part of healthcare costs), it’s all about the prices providers charge. In many areas a single hospital has incredible supplier power, and even negotiating rates down with a private insurer, the prices they charge are exorbitant.
Are American hospitals vastly better than those in any other country? Eh, I’ve been around the world. I think we have more fancy machines per capita than most countries other than, I believe, Japan, but otherwise our hospitals aren’t anything that you couldn’t find in Canada in terms of getting your needs met. But our hospital administrators (CEOs) are millionaires, many of our specialists make $400,000 or even $500,000 a year, surgeons make similar amounts of money. Also, have you ever seen how nice any private hospital is? (As opposed to some of the few that are truly government ran in America.) I don’t mean nice as in quality medicine, I mean like expensive art on the walls, immaculately and beautifully landscaped grounds, expensive finishing on everything. Some of these hospitals look like something Donald Trump would build, and a hospital isn’t a work of art or a civic monument, it’s role is utilitarian.
Under Medicare, we pay out a rate based on the national average cost of a thing, and for that reason Medicare is often the least lucrative “insurer” for a hospital to work with, much less lucrative than private insurers–whose networks look bad and less attractive if they can’t get into important/prestigious hospitals. Only Medicare and to a lesser degree Medicaid have so much purchaser power they can counteract the immense supplier power of hospitals.
So the single biggest problem with Medicare for all is simple: all that shit I just talked about, salaries, hospital niceties etc, there’s a fuckton of rich doctors with deep political connections that are going to fight you to the last man to stop this. Also Big Pharma, they’re the other big entity making it so expensive, they’re going to fight too, and are. It’s amazing for the providers (biggest cost producers) and big pharma that most of the focus is on insurers, with secondary focus on Big Pharma and none on exorbitant provider charges.