I don't know how to define it. Maybe... they're "good" if they leave people alone who leave them alone, and they're "bad" if they try to attack people or things for no reason. Not evil, just... bad.

[That's not really the word he's looking for, but he can't think of what it is. Vocabulary never was his strong point.]

Couldn't they have tried other things before they attacked everyone? If they're intelligent, couldn't they find another way so that no one would suffer as much?