Cough I think you might not have considered things from the bugs' perspective.

An alien vessel lands with an explosion. Within days, the air is full of pollution, the trees are all dead, and the water has turned a nauseating green. The source? A rapidly expanding Von-Neumann machine, with flying robots carrying materials around to make more flying robots and more factory and more pollution, and is on track to cover the entire surface of the planet, if not more. It will surely destroy life as we know it. It's a Lovecraftian horror: incomprehensible, casually omnicidal, and it came out of nowhere.

I love Factorio. It gives me real are we the baddies? vibes.