Funny. Yorick you seem to really dislike me. lol (don't worry, I'm accustomed)
I'll answer to your question, at first: At the beginning I'd be like Rachel in the way that if somebody attack me, I answer. So I'd try to hurt the most the Yeerks, of course, if I can (I can be cruel. my friends also know that... they call me "heartless")... But if I'd meet a Yeerk like Aftran, I'd think more and try to find another way. And usually, I'd prefer attack the big boss and his assistants than the little soldiers (except to fend for myself or my friends).
Everybody, you always talk about the peace movement and the Yeerks who want to invade. But don't you think there were many Yeerks "between". I mean, Yeerks who are too afraid to fight against Visser 3 (really, this guy is too horrible, even for his people...). I think there must be many. Of course I don't excuse them, it'd be better if they fight against the Vissers, but I can understand they were too afraid to do anything.
Well he had a choice. But put yourself in his position. You just condemned your cousin, your plan is falling apart around you, you just witnessed half your team destroyed (James and the others) and you really really need to hurt the enemy right then. In that same position would you have let the creatures responsible for causing all of this pain and chaos, thrusting you into a fight you didn't want any part of, live?
I understand, but i still don't agree. A serial killer can say the same thing: "My mother and my father always hit me, all my childhood. And women scoff at me... I have no job, the only person I loved was killed by somebody... so I killed them all." Of course, in Animorphs we talk about death... but it's vengeance, only that. And I thought christian people, occidental people, don't agree with vengeance... revenge by themself is against the law.
(Sorry if my English is badder today, I just wake up now... still sleeping a little ^_^')