In good faith, I will retract my racism assertion, and apologize for calling you an idiot.
In order to move forward on this issue, distractions such as this must be off the table.
As to you second point, I am glad to see that we agree on a more reasonable number of uninsured. This fact alone just chopped the projected cost in half.
In general, I agree with you that it looks bad for even that many people to be without insurance, but here is the catch: What constitutional power does the government have to force anyone to get insurance (hint: a number less than one). And even worse, how many of the uninsured DO NOT WANT insurance at all ? Can you legally force them to take it, even if they don't want it? For those who need it but can't afford it, we can start with income tax credits to make it more affordable.
Lastly, back to my last point, most companies value their employees, so they will tend to keep them happy, if not they tend to go out of business (by the way I have worked for more than one company that switched carriers due to employee complaints, I only mentioned the one above because I was closely involved with a dispute with the carrier).
So to sum up single payer is a supremely bad idea for the US. Sure it may work in some European countries, but they have populations vastly smaller than most states here, and often have extremely strict immigration policies. But lastly, I encourage you to read the Federalist Papers and Adam Smith instead of Krugman.
The only hope for a lasting democracy is a vibrant middle class, which will be buried by a single payer system.