Aliens All Over the Place (except Minidungeons)

I know the point, why do people continue to bring it up? It's like no one understands and ain't reading my posts at all. The point I am trying to make is that it's an alien invasion. Correct me if I am wrong, but are alien invasions supposed to be nice and kind and not get in your way?

That's what I thought.

Shouldn't invading aliens also do something else but take up space?