It just doesn&#x27;t make any sense. Resources are limited, sure, but they&#x27;re not scarce. In fact, they might not be limited even. If something can afford to come to Earth, they can afford to get unlimited resources from anywhere. Unless you&#x27;re positing it&#x27;s from one of our nearest stars and then just happen to be coming to Earth as a last ditch effort or something.<p>I mean, scenarios can be imagined where an alien would want to destroy life on Earth, but they seem far fetched.