what rights do citizens have that legal aliens do not have
But once here, even undocumented immigrants have the right to freedom of speech and religion, the right to be treated fairly, the right to privacy, and the other fundamental rights U.S. citizens enjoy. Since immigrants don't have the right to enter the U.S., those who are not here legally are subject to deportation. 1  The Immigration and Naturalization Service (INS) has the authority to question any person believed to be an alien as to his right to be in the United States..