Americans by a wide margin oppose shutting down the government or defaulting on the national debt in order to force the defunding of Obamacare, according to a new poll.

The CNBC All-America Economic Survey found 59 percent of respondents opposed those scenarios, with only 19 percent supporting. Another 18 percent were unsure.

Even when the possibility of a government shutdown is removed, a plurality of respondents still opposed defunding the 2010 health care reform law, 44 percent to 38 percent.

The poll was conducted from Sept. 16 to Sept. 19 and surveyed 800 people. The margin of error is plus-or-minus 3.4 percent.