The man merely left the club. He didn't trash us in the press or cause wars behind the scenes or spit on teammates. He merely left a sinking ship like any young star would. How can you blame him, at the time he owed us nothing really. Del Piero stayed with us, he's a legend. Zambrotta did what he did. You can direct your vitriol at him. Zlatan? Well, he was in between, which means his decision was inconsequential, expected and understandable really but as always on this forum, he's turned into the devil himself.
Imagine Milan getting what we got and El Shaarawy leaving them. I'm sure everyone on this forum, 100% of the people here probably, would expect him to leave. If he stayed with them he'd be a Milan legend but if he leaves? Well, he made the expected and understandable decision. If he leaves and spits on the club? Then they have right to curse at him.
If Zlatan were to come back after all these years and TAKE A PAY CUT, I'm sure that tells you something.
You try working your whole life for one singular goal and once you're on the absolute precipice of achieving it, becoming one of the best in the world, you're being asked to go play Ascoli on some dirt field in Italy -- not because of something you did, not from something you could control, no. Because of someone else's mistakes. Please, get real.