I want to point out that in the US parents who have a child born there do not get US Citizenship themselves automatically (as the cartoon implies). I personally know a number of people in the US who have American-born children but are themselves illegally present. Once their children reach the age of 18 they can apply to legalize their parents and only after that process can the parents apply to become citizens. So the parents can become US citizens but their children will be adults before it can happen. Having kids in the US is not a viable path to citizenship, it's not even a viable path to legal residency. And make no mistake, children born in the US may be US citizens but US Immigration might still deport the parents, and the kids along with them. It happens every day.