let's address these points:

1.You don't HAVE to have a health care plan under Obamacare. You can opt out and pay the penalty.

RESPONSE - If you do not choose a plan, and could afford a plan, you are charged a fee through your income taxes. There is an entire page of exemptions to this rule. http://www.healthinsurancegov.com/exemptions

Reasoning behind this clause - When someone without health coverage gets urgent—often expensive—medical care but doesn't pay the bill, everyone else ends up paying the price.

That's why the health care law requires all people WHO CAN AFFORD IT to take responsibility for their own health insurance by getting coverage or paying a fee.

People without health coverage who pay the penalty will also have to pay the entire cost of all their medical care. They won't be protected from the kind of very high medical bills that can sometimes lead to bankruptcy. It protects the rest of us from deadbeats.

2. Tens of millions of young just won't carry insurance.
RESPONSE - Yeah, because until they turn 27 they can be covered under their PARENT"S PLAN. Which they (the parents) will have.

3. And millions of elderly will be able to carry only the most basic coverage, with stiff out of pocket costs each year. They will be bankrupted.

RESPONSE - once they turn 65 they qualify for Medicare and it would not be that hard to lower the age limit to 62.

Also, the lower income elderly qualify for assistance in paying the insurance bill.