> Additionally, humans didn't specifically select for traits in other people which caused genetic disorders to become rampant in an entire bloodline Well actu

> Additionally, humans didn't specifically select for traits in other people which caused genetic disorders to become rampant in an entire bloodline Well actually they did. Many East Asians have historically preferred lighter skin tones even though it increases melanoma risk. http://dx.doi.org/10.1080/03630242.2013.806386 http://dx.doi.org/10.1080/03630242.2013.806386 There's infinite other examples of unintended negative consequences of sexual selection preferences.