This US healthcare debate honestly seems so weird to almost every non-US citizens. I agree, pretty much every industry should be run by private institutions. However, the healthcare industry deals with consumers that are very vulnerable and have absolutely no bargaining power. This unequal power between buyer and supplier obviously drives up prices.
This behavior was captured in the ACA by design. There is a reason that the individual mandate was originally a Republican idea from the Heritage Foundation (
Health insurance mandate - Wikipedia). This makes sense, given that it is the market-oriented answer to a single-payer system.
Also regarding the whole Biden/Bernie vs. Trump debate. It's fascinating to see how some here tend to ignore Trump's strategy and talking points against Clinton. He constantly used her corruption, her support for Iraq and Lybia, and her support for the trade deals as arguments. These obviously resonated with people in the rust belt.
The exact same arguments can be utilized against Biden. The whole Hunter story and Biden's connections to the credit card industry are perfect examples for the corruption aspect. He has even more baggage than Clinton regarding the war in Iraq (Trump understands the power of this argument, which is why I believe he didn't escalate tensions with Iran after the assassination). And, lastly, he has the same baggage regarding the trade deals.
Bernie, on the other hand, is not only immune to those three attacks, he can use those three arguments against Trump himself without being hypocritical. Yes, the "socialist" argument might have more merit (even though he really is a social democrat), but the GOP has been using that argument ad nauseam. In my view, it's not even close as to who would be more vulnerable in a general election.
The leaked tape of Trump underlines this. He was scared of Bernie and welcomed the idea of Biden as a candidate.