You are confused. You are conflating the taxation system with the immigration system.
There is only legal immigration. If you move and live in the country illegally, you are an outlaw. Nothing to do with immigration.
Calling people who break the law immigrants you are insulting the real immigrants.
You cannot apply to be an illegal immigrant. Get this through your thick skull.
O debemos hablar en espanol? Que no entiendes?
Because all immigrants (sue me) speak Spanish, right?
I don't feel insulted by me using a dictionary definition of "immigrant" so I'm gonna stick to that I think. You can use whatever makes you happy.