Reply #1: It would promote the general welfare, of course,

[Warpy]

both for businesses freed from the burden of providing coverage and for people who are freed from the uncertainty of actually obtaining appropriate care when they get sick. If anything satisfies the aim in the preamble of promoting the general welfare of the US, universal single payer health care will do it.

Of course, the insurance giants will always yowl about it, but they can stay in business welching on disability insurance and supplementary insurance to cover what single payer does not, like heroics that have been deemed counter productive.