Consider this. Say I'm a giant alien lizard breeding humans. I like these really neat humans that have thick tongues and round faces. I think they look awfully cute. But unfortunately, this "morph" of human has negative traits associated with it. They have speech problems, poor cognitive function,... they have social problems- other members of the human "herd" tend to avoid specimens with the thick tongues. But oh well, nevermind that. I think they look cute, so I will breed more of them. (Can anyone guess the "morph" I'm referring to?)
So tell me,... do you think humans with this genetic defect should be intentionally selectively bred to make more humans with 'cute' thick tongues?