I think there's a lot we can learn from PETA. From the moment we draw breath in this world, we're taught that life is beautiful, something to be valued and protected. We see it in our schools, our entertainment, our news (redundant, I know)...and it's not just restricted to people. Who among us wouldn't applaud someone who saved a dog from a savage beating? How many animals have made it into our movies and television as characters to be sympathized with and felt sorry for? Yet, still, we hunt, fish, trap, and "exterminate" many of these same animals. Why? At what point does an animal stop being a pet or a "helpless creature" and become a pest or a stupid animal?
PETA is, in many ways, the liberal equivalent of a religious fundamentalist group. They take the ethics they are taught and bring them to their seemingly logical conclusion. If one animal's life is to be valued, then so must another's. If the Bible is God's word, we must follow it to the letter. And so on.
If we are going to call either of these groups crackpots, we should, at least, think about why we are doing so. Is it because their ethical system makes no sense? Is it not self-consistent? At first glance, both would seem more self-consistent than the equivalent "moderate" stance, so then why are so many people moderates? Is the mainstream sense of right and wrong logically consistent, or is it more a consequence of historical convenience and gut impulse? Or, even further, does our sense of right and wrong need to be logically consistent.
I'm not trying to take political position here, I'm just trying to say that there may be a lot more here than our gut impulses would tell us. Morals are not like science...there is no objective means by which we can verify that a certain action is right or wrong. There are no experiments that can tell us definitively whether or not it's okay to hunt for sport or trap cockroaches.
"Fish have feelings."
Do they feel pain? I don't know. I do know, however, that our collective decision to fish (even for sport) was made long before we even had the means to answer this question. Before you cast judgement one way or the other, ask yourself why you're doing so. I think that process is more important than the ultimate position you take.