The author asks the people who want illegals deported to speak that thought to those people. He asks them to put a face and a personality to their political wishes, to humanize the objects of their desired action.  You call that a pigeonholing and dehumanization of those who want illegals deported.  You state that asking someone to consider the people your policy would effect is in itself dehumanizing those people.

Bluntly, this makes no sense at all.  It casts a call for interaction (with people whom your actions gravely affect) as an unwarranted attack.  And I agree, it is much easier to do horrible and life altering things to other people if you avert your eyes. We think and act differently because we follow Christ.