TIS, the retort to your statement by conservatives is that one does not have to own acar. Thus, one is not then compelled to purchase vehicle insurance.

I think it's a weak argumant. Listening to some pundits discuss it, they seem to focus on what they believe the Founding Fathers intended whichis limited govrnment. The problem witht at reasoning is that they want the Court to engage in Substantive Due Process which they usually equate with judicial activism which the, in turn, don't like. Substantive Due Process, essentially, is reading in to the Constitution things that are not "expressly" there. Go figure.