What's with the clouds today?
Well shit. Whatever it is. There is lots of them.
What if they are just a bunch of docks with too much technology and intelligence to use it all properly and instead waste it on destruction because they can.
Any monkey can destroy something. It's what it takes to build it and maintain it that takes intelligence, compassion and humility.
And really the bad aliens are just wasted intelligence. They took the easy road. Wankers.
Puff puff pass.