I apologize for offending anyone about saying fish are stupid, though I don't really see how it's even debatable. Their brains exist solely to deal with sensory imput, hormonal balance, maintaining circadium rhythms, and controlling voluntary and involuntary physical movement. They do not "think" or "feel" like other animals. What I do find offensive is telling other people they should change their lifestyle to comply with someone elses moral judgement.

What I've read about soy is that the enzymes change properties when they're cooked and the human body can no longer process them properly. I doubt that small amounts of soy would do any harm but I wouldn't use it to meet all of my calcium requirements for example. The old "A glass of milk, tub of yogurt, slice of cheese" is too much in my book. It's possible that there isn't a risk but if soy is dangerous, we wouldn't know about it for another few decades.