We have CRISPR And LOCKR, so one day we'll be able to perform circumcisions before the child is even conceived! Agenesis of the foreskin happens occasionally, so it'll be easy to figure out. After that we can move to artificial wombs and clamp the umbilical cord prenatally, like the epsilons in Brave New World! Vaccinations will be a thing of the past. They'll use electorporation to put genes in you which will guarantee a constant immune response, for example, against your own sex hormones. No sexy fun time for you, slave! It is bad for social stability. You will not even know such things ever existed. We see this in The Giver. When you reach this level though, where sexuality is now more a liability than an instrument of control, it would be best if everyone was just androgynous. Now, even undeveloped from lack of sex hormones, over a lifetime a single penis, pair of ovaries, breasts, etc will take some number of calories to maintain. If you take that number times a billion+, that's a lot of wasted calories. No, it will not do. The concept of a body needs to be slimmed down. No more genitals. We can reduce brain function as well. It is for efficiency and the greater good! And yet you hesitate?!! Treason against the collective!

They clamp.
They vaccinate.
They circumcise.