0 citizenship (= the fact of being a member of a country and having the legal rights connected with that) that is given in some countries to all children who are born there, even if their parents are not citizens :
Opponents of birthright citizenship argue that it attracts more illegal immigrants.
He supports the deportation of people who overstay their visas and ending birthright citizenship to children of illegal immigrants.
They have filed a bill that would restrict birthright citizenship to children who have at least one parent with legal resident status or US citizenship.
Canada also allows for birthright citizenship.
Most countries do not have a birthright citizenship rule, even for the children of aliens who are lawful residents.