One of the laziest tropes in science fiction is the sudden and unexpected arrival of gigantic alien spaceships above the cities of Earth. The most notable example of this sub-genre is the 1990's movie Independence Day where such ships are part of a grand invasion scheme to strip our planet bare of resources. Other than an extreme form of xenophobia that views all other intelligent life as a danger, Independence Day never really explains why these aliens with super engineering skills just don't go around harvesting asteroids, rich in vital strategic metals and frozen water, which are literally floating around in space free for the taking.
Additionally, I have huge questions as to the nature of the utopia that the Overlords helped us develop here in Earth. Both the book and miniseries strongly suggest that removing all immediate concerns like poverty, hunger, political oppression, and outright fear would not create a culturally dynamic society. That the chief human response to such a condition might be for people to fall into a lowest common denominator situation where everyone just lays around and watches stuff like lowbrow reality shows. Think I might be overstating the case a little? Well, just look here at the good old United States where intelligent and thought-provoking PBS specials only rarely draw any significant attention while such moronic stuff like Duck Dynasty, Real Housewives, and numerous other "reality based" shows are cultural mainstays of popular attention. In short, here in the United States there are numerous ways for a person to develop and enhance themselves both mentally and physically but for Western industrialized societies we are, quite frankly, lazy, fat and embarrassingly ignorant fuckers.
Someone once said that surest way for humans to drive themselves mad and go extinct would be to impose some sort of utopia on us where I every need and desire was met. Unfortunately, I believe that might be the case, which is quite depressing to me since I would prefer to believe we humans might one day mature enough to rid ourselves of the scourges that have held us back since we became self aware.