Oh? What does it say?
The findings in which they say they are regulating commerce begin like this, so search your copy of the bill as passed for this text:
(a) FINDINGS.Congress makes the following findings:
(1) INGENERAL.The individual responsibility requirement
provided for in this section (in this subsection referred to as
the requirement) is commercial and economic in nature, and
substantially affects interstate commerce, as a result of the
effects described in paragraph (2).