Please explain to me where the Constitution states that healthcare is a right and/or should be mandated/delegated by the federal government.
First, rights don't derive from the Constitution. Second, I didn't say anywhere that the gubmint should mandate/delegate (sic) anything related to healthcare.
I said I believe people have a right to purchase health care. I can't think of any basis for prohibiting someone from purchasing health care.
Do we not have a right to buy food? Shelter? I would think our natural right to life and liberty, which predates the Constitution and transcends government, includes the right to purchase food, shelter, clothing, health care, and many other things as well.
We don't have a right to force others to pay for those things for us. But we have a right to buy them.