Beans_on_a_tree
Unnecessary and difficult to take seriously. Vampires are very proud and arrogant. And I don't think it would stay that way when he comes to the volturi and says; This immortal human daddy here will help you from the volturi clan against the Romanian clan and then I will go on my way. Here, take the heads of your minions. It would be very hilarious and unrealistic if it stayed that way. Whether he helps or not, the Romanian clan will lose anyway. By doing this, the only consequence is to enter the sight of the vampires and it is an act that I see no need to do.