The bishop does not understand that Trump is merely cleaning up obama's mess. Those being deported are those who ALREADY had a deportation order AFTER they had gone through the legal process. obama after failing the immigrants who he promised to help in his first year in office, kept delaying the process of deporting them artificially where they had to keep reporting regularly to ICE and were told they could be asked to leave at any time.

Many people are ignorant of the law in general. If a US citizen steals another person's identity they can go to prison.  If they have no citizenship but are permanent residents (have a green card), their green card will be canceled and they will have to go back to their native country. 

However there seems to be a hang up by the liberals and folk like this bishop, in applying the law to those who are undocumented.  They are against the President and are using the ignorance of most folk to cook up more discontent.