I've never been a fan of the US health care system (I much prefer a public system) for ethical reasons (I think everyone should have access to free health care)

I've never been a fan of the US health care system (I much prefer a public system) for ethical reasons (I think everyone should have access to free health care). I never imagined stories like yours happening in either system. With things like that happening how can anyone support a private system with no free, public alternative?