Unrestricted gene editing in humans is probably a bad idea. (1) Evolution has been pretty effective to this point, (2) decreasing genetic variability will make humans as a species more susceptible to extinction from a single event, and (3) it will probably backfire as humans do not possess the foresight to know what the world will be in 1-3 generations and what traits might predispose their descendants to success.
Hell what we think of as genetic "diseases" give an evolutionary advantage under the right circumstances (ex. sickle cell anemia + malaria, cystic fibrosis + cholera).
Hell what we think of as genetic "diseases" give an evolutionary advantage under the right circumstances (ex. sickle cell anemia + malaria, cystic fibrosis + cholera).