It took John Oliver ten years to become a citizen and he is mildly famous, are we to believe it will take an undocumented unknown (a lot) less than that?

Exactly. If you enter without documentation, you're automatically put on a waitlist to get a green cars, and there's no guarantee you won't get deported ASAP. Which is why it's pointless to try to match Trump on asylum seekers - Trumpers like Musk will never believe you anyway.

AND he’s rich