Earlier quoted context omitted.
Being pedantic: pursuit of happiness and inalienable rights are in the Declaration of Independence, not the constitution. The right to regulate interstate commerce (and thus put restrictions on a lot of the fun things) is enumerated.
Being pedantic right back: the US Supreme Court refers to the Declaration as source material for the Constitution, to illuminate its intent.
I don't think you can make a decision based solely on the "pursuit of happiness" phrase from the Declaration of Independence, but you could use it as a supporting argument for your claim.