18 Some parts of our human family, it appears, can be readily sacrificed for the sake of others considered worthy of a carefree existence. Ultimately, “persons are no longer seen as a paramount value to be cared for and respected, especially when they are poor and disabled, ‘not yet useful’ – like the unborn, or ‘no longer needed’ – like the elderly. We have grown indifferent to all kinds of wastefulness, starting with the waste of food, which is deplorable in the extreme”.
Source: Fratelli Tutti (Vatican.va)