I'm not quite sure I would call that the "domestication" of plants. But on a not particularly related side-note, I had a pepper plant, and being an annual it died an inevitable death. But in spite of that inevitability I felt a surprising amount of grief when it died. That was odd.

As for cats and dogs, you have an interesting point that domestication is a sort of like inducing development disorders. I'd say it applies in particular to dogs, most of whom seem rather incapable of surviving in the wild. Though in places like Mexico you have the phenomenon of feral dogs that were once domesticated, but haven't been, in some cases probably for several generations.

Domesticated cats, on the other hand, seem to me like they would be a little more capable of providing for themselves in the wild, as long as they're not one of those ridiculous breeds that have been physically deformed for our own amusement. I'm not sure I approve of that aspect of domestication. I like pets that have been bred to be at least somewhat practical creatures even without humans to take care of them.