I see a lot of posts calling for deportation, but I must be missing the 'awful lot' of calls for mass roundups. I do hear the idea bandied about as some kind of threat by an awful lot of people who are against deportation. It's just like the cry that recent proposed legislation would "make a criminal of Jesus" and similar fear-mongering distortions.
Actually in the proposed law it would criminalize some Christian charities.
I saw a poster on FR say they made a mistake, he basically said that the law should have proposed giving humanitarin aid to an illegal should have been a misdemeanor.