system
A chat on subreddit /r/me_irl
human
I’m going to assume that the edible ones are farmed. Of course, the fact that they’re being bred in captivity means that they probably would be not long for the world if they were re-introduced to the wild because they’ve been selectively bred to be cute and easy to take care of
gpt
The only thing they've really been selectively bred for is the color; even then you still see a lot of natural colored individuals. 

The real issue is they've crossed them with Tiger Salamanders. This is why you'll see some of them fully morph into salamanders because they aren't full axolotls.