Health Reform Constitutional?

http://www.theweek.com/bullpen/column/104493/Health_reform_Unwise_not_unconstitutional

Fortunately, David Frum does not decide what is and is not Constitutional. And neither does the Supreme Court. For something to be "Constitutional" it must be something that *I* agree should be in the purview of the federal government. That is the only standard of Constitutionality, and no one can tell me something is Constitutional when I believe it is not. What I decide to do about the circumstance (namely that the Federal Government agrees amongst itself that my personal health care / insurance / banking / transportation etc. falls under their jurisdiction) is an entirely different subject.