If we get rid of due process, then anyone can be deported. Even you, even if you are a citizen.
Sure, you can say, "yeah but I'm a citizen and I can prove it. I have my birth certificate! I have my certificate of citizenship! I have an American passport!" but who are you going to show those documents to? Without a judge reviewing the case, evidence does not matter.
Without due process everyone could be deported. Not just "illegals." Due process is the process for determining who is subject to deportation and who isn't. Get rid of that, and there's not stopping it from happening to anyone.