Hospitals do "let" uninsured people die because they are not obligated to provide the full extent of their care capabilities to people who cannot afford it. Come in with a hole in your abdomen, and for sure they'll patch you up even if you don't have insurance. Come in riddled with cancer? Don't expect the same as they would give somebody who could pay themselves or had insurance.

This said, it is still a shoddy use of statistics. "1 in 1000 uninsured people die each year" by itself tells us pretty much nothing. What is the rate of death for insured people?

Wikipedia tells me that 8.39 in 1000 people die in America every year, so if uninsured people are only dying at a rate of 1 in 1000 every year, it seems to me that either it is beneficial to be uninsured, or uninsured people are not representative of the population (perhaps because many of them are young and healthy?).

I suspect that what is going on is this person actually meant to say something along the lines of "1 in 1000 people die every year in ways that could have been prevented if they had insurance" A subtle but important difference. The actual mortality rate of uninsured people is most likely much higher than 1 in 1000, but the deaths of uninsured people in motorcycle accidents would not be counted in that "1 in 1000" figure.

Either way, it is shoddy.