My ideal system would combine Medicaid with universal catastrophic coverage through something like Medicare.
One of my big points of disagreement with the thrust of not just Democratic-aligned public opinion on this subject, but American public opinion in general, is that middle income people should be paying for most of their health care out-of-pocket. The aim of health care reform should be to construct a health care system in which those expenses are not outrageously high for the typical family.
Unfortunately, I don't think that the "health care system" can be reformed in the United States. It's going to take a catastrophe or the emergence of an alternative to undermine its grip on this country.
For whatever reason, the current US system is highly stable. Obamacare passed and survived court challenges by the skin of its teeth. Pretty much every other presidential administration since LBJ has had a reform proposal go nowhere. It's also remarkable that COVID didn't make health care a major election issue.