Where does it say in the constitution that Americans are not allowed to have a public health insurance option?

As long as there is a majority of Americans who want it that is. Poll: 86 percent say insurance, public or private, should be available to all http://www.denverpost.com/news/ci_132036…
--------------------
Nowhere. Where does it say in the Constitution that we have a right to health insurance? Where does it say that the government can fine me if I don't have health insurance? Where does it say the government has the right to force me to have health insurance? Where does it say that it's the governments responsibility to provide health insurance for anyone? Same answer, NOWHERE. And by the way, insurance public or private is available to all.
Source