Some people believe the U.S. Government lacks the political will to raise taxes to a level necessary to adequately fund single payer, or to reduce or control the costs of health care that get shelled out to health care providers, facilities, pharmaceutical companies, et cetera. The entire point of single payer should be to accomplish those things, i.e. to normalize the funding of the nation's health care (including by raising taxes to the extent necessary), and to reduce the amount of money that is already being dumped into health care (given it's so much more than any other country in the world). If those goals weren't accomplished, what would be the point of single payer? We'd still be wasting the same amount of money over-paying for health care.