The problem is that if you breed people like animals, you will end up treating people like animals, especially those that don't have the traits people want. Wit

The problem is that if you breed people like animals, you will end up treating people like animals, especially those that don't have the traits people want. With embryo selection people can decide which individuals deserve life and which don't. Hitler was a monster, but since embryos don't suffer it's OK to kill them (never mind the fact that you are deciding whether another person deserves to live or not), and everyone likes abortion nowadays. CRISPR won't change the fact that a person born with low IQ is doomed, which means that anyone living today will be obsolete as soon as people start to breed people.