You don't even know when my ancestors came over. Why do you think they were on the mayflower and not on a boat headed to Ellis island in the 1900s? We very much had laws back then, though appealing to the existence of immigration laws is a piss poor argument.

“Law never made men a whit more just; and, by means of their respect for it, even the well-disposed are daily made the agents of injustice.” — Henry David Thoreau