well ok.. next
The term is generally used as a derogatory reference to the supposed role of the child, who automatically qualifies as an American citizen and can later act as a sponsor for other family members.[6][7] The term is alsooften used in the context of the debate over illegal immigration to the United States to refer to children of illegal immigrants, but may be used for the child of any immigrant.[8] A similar term, "passport baby", has been used in Canada for children born through so-called "maternity" or "birth tourism".
Source: Wikipedia
There are people in my neighborhood whose "anchor baby" children are now approaching 21 years of age or who have already passed their 21st birthday and still live at home. The way the "law" works is not lost on these people. No other country on earth gives gifts like these to invading criminals. I have noticed smiles on the parents' faces lately and lots of new cars and trucks in their driveway.