High testosterone reduces default self monitoring circuitry in the brain, which is the exact thing that blocks flow;
It quiets the βinner narratorβ
If you meet a girl, and she tells you her last 109 boyfriends were horrible, then you would reasonably assume that she could be the issue. But if you infer the same thing about Jewish people, then it is an age old trope and you are insecure. Interesting!
Being good looking is crucial when it comes to a human's quality of life and reproductive success. I'd say more so than having a hereditary susceptibility to getting cancer, Alzheimer's etc. Therefore if we are going to edit genes to remove these diseases, we are definitely also going to do it to beautify the human race. Whether you or I think it is immoral or not. The instinct for humans to survive and thrive is so powerful that if there is a way, it will be done.