Now I was thinking about what the real reason could be for Illagers to raid villages...
What if they do that, because they think they're better than Villagers due to the lives of Villagers being so simple (and their homes being so small and simple too compared to the mansions), OR the lives of Villagers are so simple (and their homes are so small and simple too compared to the mansions), because they get raided so often.
That's also a possibility...
OR it's just because they want to steal away their stuff, though that wouldn't explain why they'd kill them (maybe because they're afraid the Villagers will else attack them at some point instead).
OR it's just because they like stealing, killing, rampaging and destroying.
Then again, it could also be all of the above. I dunno... What do you think?