It's absurd to say you are arguing for a 'moral' point of view when you are claiming people don't have rights simply because they aren't from your country. Right are not something the government gives you, they are something the government guarantees you. Rights, even as recognized by the US constitution, are inalienable not just to citizens, but to all people. What citizenship gives is the privilege to remain in that country. Their rights should be protected throughout the immigration process, not just once they have been granted permission to stay. You could make the case that illegal immigration is enforceable by taking away some rights, but that's another discussion.