Bill, the courts have ruled that illegal immigrants are accorded certain rights once they've entered the US.
Illegal immigrants do have certain constitutional rights, but only those unrelated to their immigration status. You can't arrest an illegal for a crime and then not give them a jury trial, for example. But the "rights" they are granted relative to their immigration status are purely a creation of
Congress, and not based on the Constitution. The Court has repeatedly stated that Congress' power with respect to immigration is
plenary. So we can pretty much do what we want with them as it relates to their immigration status. We are not even required to give them hearings before deportation if we don't want to. All we have to do is change the relevant statutes.
In any case, what does this have to do with Megyn Kelly and an irrational fear of internment camps? If that's what you're really worried about, I'm quite sure any
constitutional restrictions on putting them in internment camps would kick in long before any constitutional restrictions on deportation. So the fact that we'd deport before interning still seems pretty unassailable.