A few points (unfortunately lengthy)

1- When you adjust for things like gun related deaths, obesity, and vehicle accidents, the U.S. healthcare outcomes are quite good. I think Forbes had a pretty decent write up on it in the past. ( I'm not saying things can't be improved upon)

https://www.forbes.com/sites/physiciansfoundation/2018/04/09/u-s-health-outcomes-compared-to-other-countries-are-misleading/

I'll take my firearms, ice cream, and choice of vehicles over re-making us in the image of the rest of the world. I think the same Forbes article also brings up the homogeneity of certain countries most like to cite, China, Taiwan, the Scandinavian countries, et al. Those countries are typically racist or at minimum largely xenophobic, oft hostile to outsiders, especially the Asian countries. I can go on about this one, But suggesting similar policy as these countries, a la vetting immigrants more closely or giving preference to certain countries leads to the racist/white nationalist label, so that's as far as I'll go.

2- The VA is a classic model of socialized medicine. The VA does some things very well, general and typical ailments. However, like all socialized medicine, wait times can be long to see a specialist and approvals can be arduous.

Going outside the system without approval isn't possible in a truly socialized medical system, Alfie Evans (I think was his name in the UK) is a recent and high profile example of this. After his illness diagnosis, the Vatican offered experimental/trial treatments at the request of the parents, willing to try anything. The NHS not only declined him further treatment in the UK system citing it inhumane to continue providing treatment, it also denied his release to another system (Vatican) which offered experimental treatment at no cost to the family or the NHS. The child passed away soon after being denied transfer to the Vatican and life support.

In the socialized system, you have little recourse if medical malpractice occurs. And, like many good government systems, problems may simply be transferred to a different hospital, or disregarded in total( as is the case with the VA). What's great about our system though, if you don't like Going to the VA, no one can stop you from seeing someone else (other physicians give discounts for cash or perhaps you can look for other insurance, or contact the physician to arrange a pay schedule).

3 - Ed Dolan did a pretty good podcast with Russ Roberts (econtalk) regarding our healthcare problems. While I disagree with you and everyone else who want Medicare for all/public option, or a more European/socialized system, I found his idea of mandating universal catastrophic coverage intriguing. I could probably get behind that, and I can definitely get behind removing employers from providing insurance on the condition of employment. But it still strikes me as pretty antithetical to the principles that our country was founded on. But I'm probably one of the few left who would prefer freedom, so https://www.econtalk.org/ed-dolan-on-employer-sponsored-health-insurance/