The things you seem to mention most are based on capitalism. Big business running the country. Insurance companies controlling the health care system. You didn't mention it directly, but the influence of lobbyists. So it is not necessarily that people in the states are ignorant as to their own health compared to people in other countries, it is that they are trapped in a system controlled by big business.
I would infer from that that for the health of Americans it would be better if big business did not control so much. The only alternative that I can think of for that is for the government to take more control, a move in the direction of socialism. That is the antithesis of the basic tenet of Republicanism which is smaller government, more free market. That is what trump is constantly pushing for.
As a trump supporter (did not say tDS or cultist) how do you reconcile promoting free market and small gov't at the same time you seem to say that those things are bad for the health of Americans?