"The only way someone is going to get so many of these nations (think islam) to put aside their differences and unite is something that would appear to be threatening the whole planet.
The current directorship running the global economy into absolute bankruptcy will manufacture a global problem, like sudden global warming or sudden crop failures world-wide, or a plague that seems out of control, or the end of fossil suel being able to sustain the world's out-of-control population. THEN the advent of ETs will be sold as the measn to bring this terrible catastrophe to an end. All you'll have to do is submit for the census, accept the global government's mark of authenticity and you can have security for your family to receive government's aide as made possible by the advent of these benevolent ETs who showed up just in the nick of time. ETs will be sold as saviors, not a menace but not pushovers either. They must be obeyed for humankind 'to receive the help we so desperately need'.
That’s an interesting concept. I never thought of it quite that way.
Of course, I agree that the mark is going to be tied in, somehow, with showing your loyalty to mankind. I just never thought of it that way.
Quite plausible.
Though some critters may play bad cop attackers and others good cop saviors.