Cap didn't seem to mind the X-Men setting their own nation when he came begging for Cyclops to accept a medal in order to look good himself.
And being recognized by the US don't give them the right to kidnap anyone.
Wait, I forgot I was talking to an Avengers fan. I'll type slow and make sure every sentence is as clear as possible.
Cap didn't seem to mind that the X-Men set up their own "rogue nation" until the time he's got a beef with them and decide to lock them up. Can you spell hypocrite ?
And the Avengers kidnapped the Utopia kids. And would have done the same to Hope, had real heroes not been there to face them.
Now let me know if there is anything you don't understand, I'll be patient and explain it to you.
Steve can legitimately say he's a super cop to some degree (though it may not specifically justify what he's doing in AvX). I'm not entirely sure what authority Cyclops thinks he's got when he made those demands in his letter. But either way, Scotts demands seemed a hell of a lot more far reaching to me.
*back from re-reading Uncanny X-Men 11*
He asked that their sovereignty be respected and that no individual be persecuted for being a mutant. How dare he ?
Meh, I thought you were talking about the press release in last Uncanny. For all we know this letter isn't canon, much like the whole Jean Grey School program in WATXM #01. Those were just bonuses.