You're living in a much smaller nation (that I miss living in more than anything in the world) that isn't at the helm of medical research.
And you're paying 13% in insurance? That's less than most people in the states pay now and would bring our normal pay taxes to well over 25% of our paychecks.
Neither the logistics nor the economies of nationalized health care would work in the US, and that's not the bring up the issue of removed private, corporate, incentives.