I really think you should have just stuck to "I want to breed out the wobble defect." Comparing spiders to little people is pretty deplorable in my opinion. I mean I know you meant no offense, but c'mon, have a little more sense than that. We all face our own struggles day to day, from one thing or another. A little person can lead a happier life than an averagely proportioned person, and vice versa. I really wouldn't bring human examples into this, it's irrelevant and inappropriate. Humans "breeding" in a cage is different on a whole spectrum of different emotional and spiritual ways than snakes breeding in a rack. Both of these are pretty horrible examples to use in my opinion, and both really weaken your original mission statement and argument. Anywho, just had to say something to these regards.
Cheers,
-Matt