it is quite often morally wrong for many who know of such a case [of great deprivation] to fail to provide help. (If, however, they had more vital goals to pursue, say attending to their children’s medical needs, this wouldn’t be so.) Lack of generosity, compassion, or support for those who deserve it would be morally wrong. Indeed, it could well be true of many that they ought to help anyone in such dire straits and very wrong for them not to do so.
I would only add that responding to economic vulnerability in a stateless society is not just a matter of personal solidarity, valuable as this is, but also of ending privileges that make and keep some people poor and of effecting reparations for past acts of large-scale theft and land engrossment.