Which of the following categories does NOT apply to aliens subject to removal?

Citizens born outside the U.S. do not fall under the category of aliens subject to removal because they are considered U.S. citizens if they have acquired citizenship through their parents or other means. U.S. citizenship allows individuals to remain in the country without the threat of removal, regardless of their place of birth.

In contrast, the other categories listed describe individuals who do not have U.S. citizenship (non-U.S. citizens) and are thus subject to removal proceedings under immigration law. This includes lawfully admitted non-U.S. citizens with a removal classification, arriving aliens who are non-U.S. citizens, and non-U.S. citizens who entered the country without proper admission or parole. Each of these groups can face immigration issues that could lead to their removal from the United States, unlike citizens born outside the U.S. who possess the rights of citizenship.