The plot definitely had some problems.
How were the humans able to so easily understand the aliens foreign language? Same for the aliens understanding english.
The aliens were clearly much stronger than humans but didn't offer up much resistance. Why would the aliens give up their truly superior weaponry to the humans?
They were going to go door to door evicting aliens and sending them to a tent city?
Why did the government just let the aliens ride camp out in the sky for 20 years, hovering and all that and looking ominous? Clearly it was an eye sore to the community and should've been properly dismantled or destroyed.
So the aliens love canned cat food?
The Nigerians always get the bad rap.