Wrong. It's interpreting the Constitution as it was MEANT to be interpreted: as it was written, litterally.
Correct me if I'm wrong, but one of the biggest complaints about health insurance right now is that they do not operate beyond state boarders. That to me, right there, is acknowledgement that the Commerce Clause does not apply. Of course, if you losely interpret the Constitution, it's easy to make the Commerce Clause applicable to ANYTHING and EVERYTHING. Hell, I can make it applicable to taking a bus to get across town if I want to.
That said, it is not the government's job to TAKE CARE of the populace. It is the government's job to make sure that no one else impinges on the rights of the populace to take care of themselves. That is what the quoted portion of the Constitution says.