If you come here legally and don't commit a crime, they won't send you down there. If you come here legally and commit a crime, you'll get sent back to your country of origin. People being sent down there came here illegally.
If we discard rule of law and due process for anyone, it is threatened for everyone. They're defying courts, they're not following the law. This does not end well for anyone, at all. It is incredibly dangerous territory.
If you you are illegally in just about any country, being there without authorization is basis for deportation. No one is being denied due process. Moreover, you can be denied entry at ports of entry to any country for any reason by customs officials -even with a valid visa. They do not need to offer "due process."
He’s a Salvadoran citizen illegally in the US. He gets deported. If you get into Canada or Mexico illegally, barring bribery, you will get deported. No due process is owed you.