As I point out in the article, most American countries north and south have some form of birthright citizenship. But the number is irrelevant. Free speech wouldn’t be any less of a human rights issue if only one or two countries recognized it, or even zero for that matter. A child has absolutely no control over where it is born. Denying it the full protections your constitution has to offer on the grounds its parents made a particular choice is impossible to ethically defend no matter what the law says.