So? If you provide free food to large number of free roaming people, would not their number increase to unsustainable (in food terms) levels capping the idea with inevitable end?Only if you regard them as dumb animals. If you regard them as fellow human beings, helping them out takes on a different meaning- hopefully different from throwing chunks of meat.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1