it leads the discussion to extremes at the outset: it invites you to think that animals should be treated either with the consideration humans extend to other humans, or with no consideration at all.
译文:它从一开始就将讨论引向两个极端,它使人们认为应该这样对待动物:要么关心和体谅它们,就像对待人类自身一样;要么完全冷漠无情地对待它们。