All these one-worlders believe that when the global government is achieved, they will be the glorious leader. But there's only room for one glorious leader, who will kill off the other wannabes to protect his position.
And look how well it works out for the countries who buy in (emotionally and literally) to international socialism. Their porous borders stay nice and open after all the evildoers are in, then, like Venezuela and NK, the borders firm right up, don’they? (But in the other direction)