If she was two when her parents brought her over, it's not her fault.
Does it matter? She said she didn't know much about Mexico so she was prob very young which in case IT WASN'T HER CHOICE. For all intents and purposes this looks likes the only country she's ever known and it was wrong and immoral to send her back, to make her pay for her parents mistakes.
So what is the cutoff age for deportation? Maybe there should be one, I don't know. You both seem to know, so what is the cutoff? 19, 20, 35?
That's fine, but why didn't she take responsibility for herself and start legal proceedings when she turned 18? Why don't all of the kids "who come of age" do that, who come over when they are small with the "questionable" legal status of their parents?