We military folks pledge to support and defend the Constitution of the US. One big reason the Constitution places restrictions on Congress is to give the states room to experiment with social & economic policy, like they have been doing in healthcare, and avoid often erroneous one-size-fits-all solutions. Another is that limiting the power of the federal government protects individual liberty. As Thomas Jefferson noted, when government gains ground, liberty yields.
To date, 2 federal judges have found that the Patient Protection and Affordable Care Act (Obamacare), is constitutional; two have found that it’s not. This disagreement is really about the Supreme Court’s interpretation of the Constitution—not the Constitution itself. As most people properly understand the Constitution created a federal government of enumerated (Article 1, Section 8) and thus limited powers, not the sprawling thing desirable to those supporting the constitutionality of Obamacare. Also look at Article 1, Section 10, and the 10th Amendment.
A rational judge guided by the plain meaning of the Constitution must declare Obamacare unconstitutional. Only by stretching the Supreme Court’s already taffy-like interpretation of the Constitution even further can anyone even pretend that Congress has the authority to regulate non-economic non-activities, like not purchasing health insurance.