The Center for Immigration Studies is estimating that 39,000 infants are born each year to foreign students, guest workers, and others on long-term temporary visas in the United States. In addition, 33,000 are born annually to tourists, the majority of whom are engaging in “birth tourism,” ie, coming to the U.S. shortly before giving birth so that their child will be automatically awarded citizenship.
The policy of birthright citizenship, where newborns are granted citizenship merely for having been birthed on U.S. territory, means that most of the total of 72,000 children born to long-term non-immigrants will be new citizens. As such each will provide an anchor for its parents, siblings, and who knows how many relatives, real or merely claimed, waiting back in their home country.
(This seventy-two-thousand figure is large enough, but it is dwarfed by the estimated 300,000 born annually to persons living illegally in this country, persons who could and should have already been deported if our government only had the will to do so.)
Focusing on birth tourism, the CIS explains how this scam typically works: A pregnant woman in her home country contacts a “birth tourism” agency, which arranges for the woman to enter the U.S. on a tourist visa, which is good for six months. The agency also arranges housing for the woman while she awaits the birth of her child. (In March 2015, CNN reported that one birth tourist used an address in “a high-end Irvine, Calif., apartment complex where one birth tourism company had rented a number of homes,” and was thus able to house multiple clients at the same basic address.) After the child is born, the woman gives the address of her temporary housing to the authorities and waits for the birth certificate in the mail. She then applies for a U.S. passport for the child. Once that has been secured, she and her new U.S. citizen leave for her home country. But not for long, to be sure.
For more, see CIS.org.