"Birth tourism" is a term for travelling to a country that practices birthright citizenship in order to give birth there, so that the child will be a citizen of the destination country.
Since the adoption of the Fourteenth Amendment to the constitution on July 9, 1868, the citizenship of persons born in the United States has been controlled by its Citizenship Clause, which states: "All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside."
Birth tourism should be stopped.