Without inbreeding, there would be no morphs, no Localities, no species, no AKC breeds, & so forth, of both plants and animals. The reason any of these look the way they do is inbreeding. Trying to blame a single surface color gene for babies being kinked seems a little far fetched.
I agree with you Dave, but I'm not blaming a single surface color gene, I'm blaming all those other genes that get bred along with that gene - Like you said, without inbreeding we don't have AKC breeds like German shepherds and a lot of commercially produced crops.
But there are also a lot of german shepherds with Hip Dysplasia from BAD inbreeding. There are Dachshunds with back problems, Bulldogs with breathing issues, There are Dalmations with epilepsy.
Corns have Stargazer. (and probably others I do not know about) And now responsible breeders are testing their snakes to try to eliminate it from their stock. I am sure that you are not saying that you would continue to breed a snake you knew carried stargazer. I am sure that if you suspected stargazer - you would test breed and then eliminate those animals from your breeding stock that were shown to carry it.
Hmm I think I'm getting off topic here - I apologize, the question was more about the source of kinks, (environmental versus genetic from inbreeding)
I feel that being aware that you are inbreeding, and taking care to avoid breeding a bad gene, has merit. Like Mystic Exotics has pointed out, People will buy a 1.1 set of clutchmates, and breed them, and then sell 1.1 sets to other people who breed them, and so on. If there are some bad genes tucked in there with the desired ones, sooner or later they may pop up. If a deformity is genetic, and undesirable, then continuing to breed it (even in non-displaying het form) seems pretty irresponsible to me.. Like all the puppy farms pumping out 'pure breed' dogs with problems that later break their humans' hearts.