Isn't this wrong?

[Slim]

Honestly this is what had been bugging me about morph breeding [especially "Super" types] for a long time; I still don't think I'd be comfortable purposely inbreeding/linebreeding if I had my own

Sounds like you're looking at the situation from the perspective of inbreeding in mammals, which is not the same as inbreeding in cold blooded reptiles.

Keep in mind that there are small pond environments all over the world where the local frogs and turtles have been inbreeding since the dawn of time.