If you listen to these types of arguments you would think that the Democrats have figured out how to synthesize healthcare out of thin air and the Republicans are putting a stop to it
I think there's a 20% chance that the Democrats abandon their center-right neoliberal platform next presidential election and actually push for single payer healthcare. I'm not holding my breath though.
Democrats have produced several viable options based on existing models across the world. The ACA was the most conservative option and Republicans still fought to stop it.
Healthcare has already been successfully synthesized in dozens of countries around the world. There is nothing unique about America that precludes universal healthcare.