I agree with that, hence the reason the plants are in huge greenhouses so no cross-contamination can happen. I have no clue as to whether humans have tried eating it. But they managed to make the rice to make creatin [I think] which carrots produce... so we consume it anyway. 
Mhmm, greenhouses. I bet they'd have to be careful so none of it gets out though. Such as, seeds have a wonderful way of germinating. And, I thought people already ate the stuff? Isn't transgenics the same as genetic modification? I know many of the foods we eat are GM. However, I don't know if they have bad effects on people. *shrug*
For the animals, I don't think many studies on them are good, harmful ones, that is. It doesn't harm them. Just "evolves" them scientifically. Changes their genetic make-up etc

All of them? I don't know, I rather doubt that. That's too much of a good thing to let up for people.
What's perfect though?! 
Not perfect per se, just more sustainable. Like what you said "Personally, I'm on of those people that think Mother Nature should take its own course.", "Survival Of The Fittest." The more you do up your body, the less likely the latter is going to happen. Most people definitely wouldn't agree with that. After all, aren't we the dominant race, the best, the brightest. We have the right to do what we want, everything else be damned.
We shouldn't mess with an animals, or a plants genetics to benefit us. 
Would you agree that we should change things around so other animals, plants, the world benefits, not just humans? I see a fine line between in using transgenics. It can be for good or bad. I imagine everyone sees that differently.
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I wanna watch you bleed. //