Why we cannot have health care.

Preamble to the Constitution of the United States of America:
"We the people of the United States, in order to form a more perfect union, establish justice, insure domestic tranquility, provide for the common defense, PROMOTE THE GENERAL WELFARE, and secure the blessings of liberty to ourselves and our posterity,..."

"Section 8.
The Congress shall have power to lay and collect taxes, duties, imposts and excises, to pay the debts and PROVIDE FOR THE common defense and GENERAL WELFARE of the United States; but all duties, imposts and excises shall be uniform throughout the United States;..."

Twice in our Constitution it mentions "general welfare" What constitutes 'General Welfare'?
The old-age benefits provisions of the Social Security Act of 1935 is an example of providing for the 'general welfare'. Medicaid/Medicare are 2 more examples of providing for the 'general welfare'.
How is providing health care for all any different? How is the 'public option' with it's opt in/out constitutional, because it would not then be uniform across the states?

We are trying to jump a chasm by playing hop-scotch across it. Every other industrialized nation has a form of Universal Health Care. None of those other countries want to go back to what they had before. And for sure, absolutely none of them want what we have now for health care in this country.
So why is it so hard to go with the most obvious, the most humane course of action, which is what every other industrialized nation on the planet has already done? Single Payer, Universal Health Care. The hard work has already been done by these countries. All we have to do is cherry pick what works. What is so hard about that?
The United States pays twice as much for health care than any other country.
Chart: http://www.timws.com/images/figure_cost-1.gif
And yet people are still dying for lack of access to basic health care. People are losing their homes, going deep into debt, going bankrupt for basic health care. How are we the Greatest nation on earth if we can't/won't even take care of our own?
How is it the same people that do not have a problem with 2 wars that are costing us, US, trillions, have a problem with health care reform that will save us billions?
Don't the Hooples realize if we had Single Payer, Universal Health Care, the canon fodder we produce for our illegal wars, will be healthier and therefor able to kill more brown people for their oil? That alone should make them want real health care reform.