Illegal immigrants include people who have been here since they were young but neglected to renew papers (more than likely due to cost), which is a civil offense. People are getting ripped from their families and stripped of their humanity over something equivalent to failing to renew your drivers license.
Not only this, but the administration has revoked legal status from legal citizens. That doesn't seem like they're only going after illegal immigrants. I'd rather them go after genuine criminals than people who are just here to provide a good life for themselves and possibly their children.