Perhaps we need some outside, universal threat to make us recognize this common bond. I occasionally think how quickly our differences worldwide would vanish if we were facing an alien threat from outside this world.
My reluctance to use alien invasion is due to the feeling that we are not likely to be invaded and taken over. It would seem to me that by the time a race has achieved deep space capability it would have matured to a point where it would have no thought of dominating another intelligent species. Further than this, there should be no economic necessity of its doing so. By the time it was able to go into deep space, it must have arrived at an energy source which would not be based on planetary natural resources.
I've never read a book [ Nnedi Okorafor's Lagoon] like it before. Big and sprawling with a million points of view, including sea creatures. It's about an alien invasion that starts in Lagos, Nigeria but, really, that's just the starting point.
But fundamentally, I don't think of it as an alien-invasion movie; everybody's here, kind of, right? So, I think it's probably more of an action-adventure picture, if I actually had to qualify it.
The planet Mars -- crimson and bright, filling our telescopes with vague intimations of almost-familiar landforms -- has long formed a celestial tabula rasa on which we have inscribed our planeto-logical theories, utopian fantasies, and fears of alien invasion or ecological ruin.