Were you talking about what I said?
people don't have to "get along fine with it". All you have to do is take care of the animal. The animal lives with the problem.
It IS very different than owning holding a wild animal captive. Obviously, if it's a spider, its captive bred (not wild). Nobody said they were keeping wild animals captive. If they did, they might miss the wild at the most. Not have neurological disorders. Your drift doesn't make sense.
"whether you like it or not". If you don't like it, don't buy it. Let the breeder or another customer buy it to "give it it's best possible life". I was saying the reasons I wouldn't breed a spider. Other people might breed them, but not me.
Nobody is forced to breed anything. People don't have enough self control to decide whether or not it is worth it to breed an animal for patterns, or for the linked problems. If you can deal with animals possibly having problems, you shouldn't be owning animals.