Aliens: "Um, so... yeah, we were more interested in trading novel technologies and refueling our ships. But seeing as you all look like you're starving to death and have destroyed your system's resources, how about we just donate a few universal constructors and a bunch of feed stock for them. We've got enough fuel to make it to Proxima Centauri, so we're good for now. Oh-- we're hard coding the universal constructors to "food" only though because your life choices have been... well never mind that, our philosophy is not to judge."