That's not a good enough reason. If hospitals are playing games and using out of network doctors and causing medical bankruptcies, that can be fixed through legislation. I don't see why the entire field needs to be socialized if there is a single problem.
The people who are poor or old are largely already on the socialized programs. The socialized programs of Medicare and Medicaid already serve almost 160 million people combined.
Medicare - 61.2 MillionMedicaid - 97 Million Much more than the 30 million figure cited. Considering the US population is
328.2 million, that's a lot. Medicine is already largely socialized. Medicaid even offers socialized supplemental insurance for people who are under-insured.
The 30 million figure appears to only refer to people who went without coverage at some point during the year:
“Nearly 30 million Americans went without coverage at some point in 2019.” The Continuation of Health Coverage (COBRA) program allows you to bill medical claims to your previous insurance if you get sick for up to 18 months if they are transitioning between jobs, as long as you pay the rate your employer was paying. If you are unemployed for a long period of time then you should probably be on Medicaid. Medicaid can be applied for 60 days after losing your job, which some people neglect to apply for.
The actual number of chronically uninsured might be unaware of the socialized healthcare options available to them, are young and healthy, or don't care. If they get sick they know that they can just get insurance when they need it, since applicants are not judged for pre-existing conditions anymore.
Medicine is already socialized for those who need it. There is no reason to socialize it for people who can afford it. If it was totally socialized the people who could afford it would just be paying for it anyway via taxes, with an extra layer of government bureaucracy, and would likely get less options available to them. Right now young people can choose a cheaper catastrophic plan, and people willing to pay more can choose elaborate plans that include non-standard alternative practitioners or incidentals considered cosmetic by regular plans. If it was standardized by the government to a single plan there would be fewer options available. It also removes the competition aspect among insurance providers which naturally makes the standard plans employers buy cheaper.