If humans had the ability to travel to inhabited planets we would almost certainly abduct the native creatures. Also, how the fuck would we know why aliens do what they do?
Well we wouldn't, at first. We'd need a clue. Which we don't have, unfortunately. Pretty good odds that if something did happen to these people, that they wouldn't be able to clearly and accurately recall the details or understand what was actually going on, any more than a child does when going under surgery, or even worse, an animal going to the vet. Friendly or scary faces, strange machines, and tables, voices and feelings, and being subjected to uncomfortable sensations.
That's essentially dick to go on, and unfortunately, the majority of the Space Brothers bullshit reads like a nitrous oxide fantasy.
What we do have are cold hard concepts related from human experience. What would we do in their place? Would we land in Times Square? Would we kidnap clandestine inhabitants? Would we expose ourselves our kick off an irreversible course of action? Might there be restrictions to what we could do? Might there be ways past those restrictions?
Obviously there must be a primary reason to leave your home planet. Needs that give rise to other needs. This assumption that, if they've made it this far, they must be suitably virtuous and have no needs of a primitive life bearing world seems to me to be wishful thinking. And if life is as precious and rare as we think, what makes us think that we wouldn't be 'claimed'?
I think instead of laughing at the question, or instead of pretending there's no answer, we should take some sober stock of the issue, and realize that the pond we're in isn't that big, and that it's connected to an even larger ocean. If there is life out there, we know how life reacts to life. We know.
Abductions? Just a minigame.
An Anal Invader:XDarkSpiritZyglorb420X is visiting your world!