castration of any kind does not stop sexual predators. Their problems go beyond hormones. A castrated heterosexual rapist e.g. can change to a screwdriver as his instrument of choice. Turing wouldn't have stopped wanting to be with men, and would have continued to arrange it. Better solution to keep him away from men: prison.
Oh, wait... Let me get back to you on that. 
You know my official stance on the GLBT lifestyle, of course, and my Witness brother shares it. He told me not long ago that he has two dictionaries, identical except that they were published maybe 30 years apart. They both define "homosexual" in about the same way. The older one does not contain "homophobia" but the new one does. It says, '... an irrational fear of homosexuals...' That fear we try not to succumb to, even those of us who may have harbored it before becoming Witnesses. You may have noticed that some claiming to be Christians have that fear, so that they say a gay person shouldn't be employed as a supermarket clerk, for example. Irrational. For us, there is 1 Cor 15:33 to keep us safe, even as we often talk to GLBT about Jehovah.