Bread is given to satisfy not only material hunger, but also to respond to emotional, political, and spiritual hunger: it expresses a desire for fraternal and sororal relationships, a desire for the Other.
Jesus does not command those with privilege to make space at their tables, to give a portion of their excess to charities, or to invite a disadvantaged neighbor to join the feast. No, Jesus invites those with privilege to put off their privilege, and then to use the excess that their privilege has still provided to feed not their fellow privileged friends, but those who are most in need.