Indeed. Obamacare-as-a-block was specifically designed to try to eliminate this cherry picking of individuals. But it's turning out that the solution might not be adequate because insurance companies are choosing to just abandon the whole block. That's what I meant with my "closely related" comment above.

And if the Obamacare exchanges don't work, that's no good either!

As I said elsewhere, the economics of health care are very challenging.

This is a discussion the rest of the western world has had and solved in various ways over the last fifty years. The economics of health care isn't a new mystery the world has never before seen, for us to unravel here, it's a matter of policy where we're just lagging behind the rest of the west.

That's why I find these questions irrelevant.