What you think "enhancement" means now is very different from what people might have said "enhancement" meant in the 60s which is very different from what they thought "enhancement" would have been in the 20s and is very different from what we might think it means in the 2050s. Homosexuality used to be a mental disorder, and it would have been an enhancement to "cure" it. There would have even been gay people who would have voluntarily taken that cure because of the distress society subjected them to, there are records of patients coming to medical professionals looking for treatment. I like the alternate solution to that problem we're currently making progress towards, in which we accept and support that there are diverse ways for people to exist, and I do not trust that we have correctly figured out what things about human being are currently "wrong" and which things can be "improved"