"Some estimates" is a slightly less meaningful term than the estimate to which it refers. Democratic pie-in-the-sky estimates for those who are uninsured are 40 million (note that 13% is ever so slightly less than 38%). This 13% estimate also includes a large number of people who can afford insurance (gross yearly incomes over $50k), illegal immigrants (who we shouldn't be covering in the first place, let alone counting), and the cyclically unemployed (those who happen to be uninsured at any point in time due to them being temporarily unemployed).
Yes, there are serious problems with our healthcare system. Many of which arise from incredibly poor health habits of people who do not have to pay for their own care in any meaningful way which results in an artificially inflated demand for healthcare services which, in turn, drives up the price. But many of the problems with our healthcare system will be exacerbated by becoming "single-payor." And our spot as the #1 most reponsive healthcare system in the world will definitely become a thing of the past.
This was a typo. I meant to type 38 million. As for the rest of it, I don't disagree with anything you proffered.
My larger point to an earlier poster is some Republicans can't continue to pretend that there isn't a problem. When the GOP had both houses and the Pres, this was an opportunity to draft legislation that offered market-based solutions. They didn't, at least not seriously. So, now we're left with practically no legislative power and no veto. Elections have consequences and those consequences aren't going to be pleasant.