Are you on crack?
If you read anything on Stalin, Romania, or North Korea, then it's easy to figure out such evil motives. Start with "Aquariums of Pyongyang". It's a very short book written by one who's escaped North Korea and about his experience in a NK gulag.
Are you asleep? How many old seniors are being removed from society because of neglect in hospitals?
Did we ever think that suicidal fanatics would use civilian jetliners? Some theorized it. But many didn't think of it.
No, I'm not on crack. But I do think in a very different vein. And, I'm deadly serious. Some are so filled with hate that they either stop at nothing to defeat an adversary, or they use all of their intellect to undo their enemies.