The act of deporting immigrants amounts to ripping them away from their homes and families, and then dumping them in a country that they might not even have any connections to anymore, depending on how long they've been away from their birth country. It's an extremely violent form of punishment dished out against people who did nothing but cross an imaginary line in the sand without getting the right paperwork.

In all actuality, the legal status of "alien" has nothing to do with how integrated into the community a person is. Someone who was born in the US but then raised in their parents' home country, that doesn't speak English or have any familial ties to the US, is a "citizen"; while someone who was brought to the US illegally as a baby, who speaks only English and has no ties to their home country is an "illegal alien" who could be deported to a country they have no memories of.

To add to all that, a lot of people who get deported just end up re-immigrating because their homes, families, jobs, and community are in the country they got deported from, they have absolutely nothing in their "home" countries anymore.

To sum it all up, the deportation of immigrants is a cruel, arbitrary practice that does nothing but terrorize people in order to create a vulnerable underclass of workers for capitalism to exploit.