Obamacare is, more or less, a tax on young, healthy Americans

If you're young and healthy, you're the key to Obamacare's success or failure.  You're the part of the risk pool whose premiums will subsidize benefits for the remainder of the risk pool.

The scheme will collapse (or rates will rise dramatically for everyone else) without your participation.  That's why, under the ACA, attempting to opt out of health insurance is now a criminal offense.

Just so you know.