Yawn. Obviously he's under the influence of red kryptonite or something. Or he's an evil clone Superman. etc., etc., etc.

Fifteen years ago they killed him off. The end. No more Superman. But wait! He got resurrected!! How do they think of these things???

If Superman can come back from the dead, he can get his citizenship back. No biggie. He's Superman. Just keep buying the comic books and you'll see.

(Did I say "comic books"? My bad. I meant "pricey graphic novels.")