The point is this: without agreement on the fights of people, arguing about the fights of animals is fruitless. 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.

请问老师，蓝色部分的句子里的 invite 和 extend to 要怎么理解？谢谢老师帮忙解答！！！