Sorry no cigar :)
All souls ARE HIS , that does not mean they are His children, Christ will judge those souls and condemn those that are not His to hell with the devils. He is sovereign over the souls of all of His creation . I am in charge of my dog, but he is not my child. This verse my friend is a verse of Judgment not Fatherhood.
All of Gods creation are subject to His will and that includes Satan and I doubt you would call him a son of God
Please present us with a verse that states all men are the children of God
Actually, yes I would. We are all His children, the good, the bad and the ugly. That doesn't mean He won't send some of us to hell but we are still His. If God was not the father of Satan who was? Please don't misunderstand me - We are all created by God, Jesus is God, a whole different "fatherhood".