The fact that the richest nation on earth permits about 10% of its population no access to decent healthcare is morally repugnant. But even if one is not persuaded by the moral argument, perhaps the economic impacts can change views.
With no national sick leave policy, potentially infected uninsured citizens will have the incentive to go to work, raising the risk for all. Children of uninsured whose parents are unable to take sick or medical care leave may be shunted to older care givers who are most at risk. Uninsured families are acting rationally for their own economic circumstances, but creating a larger risk profile for all.
Let's hope Americans are sobered by this experience and consider a more sensible healthcare policy.