The problem here is not only the current level of health-care spending (U.S. spending exceeds that of most other industrial countries) but, to an even greater degree, the continued rapid growth of that spending. Per capita health-care spending in the United States has increased at a faster rate than per capita income for a number of decades.
Should that trend continue, as many economists predict it will, the share of income devoted to paying for health care will rise relentlessly. A piece of wisdom attributed to the economist Herbert Stein holds that if something cannot go on forever, it will stop.