Americans don't get fourth Amendment protections from the Constitutions because the government feels like it can blanket collect email and phone data on its own citizens even though they haven't broken the law.
Illegal immigrants should be granted amnesty and given a path to citizenship because the government doesn't know what to do with them. They broke the law but are being rewarded for it.
That's irony, American style.
Here's a bonus irony for you - those illegal immigrants, if nothing changes, will have their Constitutional rights systematically taken away too, after they become citizens.