All reptiles are wild animals. They have all their pure instincts and are not domesticated in the slightest. Any snake or reptile you have in your house is a wild animal, even if it was never in the wild.
Like when people raise feline cubs to adults, they are still wild animals.
Unfortunately, there will always be a wild caught trade for the appearances of some unusual wild caught snakes. Naturally, by buying any snake or reptile, you will always be enforcing snake catching because we are all feeding the trade of reptiles.
Also, I do believe that the 48 year old ball python (oldest recored) was a wild caught ball that lived in a zoo it's entire life. But I can't find any support of that, however, I assume breeding was unknown 50 years ago with ball pythons and would presume it senseful for it to be wild-caught.