You want an honest opinion on this one? Good in bits and pieces, well written but unfortunately too much coloured by your own prejudices. To be honest, the biggest redeeming feature of your fic is Neville and Luna not being the ones who truned their backs on Harry. But your decision to have Remus, Hagrid and the Weasley Twins turn on Harry is in my opinion absolutely codsawallop. Remus for one would never turn his back on Harry and before you go on about how he believed Sirius was a traitor, please recall that Sirius himself felt that Remus was a traitor so he did not inform him of the switch in secret keepers.
That rant that "your" Harry had in the ministry was absolutely hypocritical. If he's helped those people, they have helped him as well. Please remember that he would have been dead many a times had it not been for some of them-lets see Dumbledore with Quirell, Hagrid in Knockturn Alley, Dumbledore again in the Quidditch match in his third year, Dumbledore in the ministry of magic against Tom. Examples are numerous and it's not a one way street. It's one thing to make characters OOC, but to make them -180 degree? Doesn't make things look convincing. And finally, Harry moves to US? I guess that you are an American, well that would explain much of it.