Oh, I was just teasing that your reference to Turing might be a bit obscure for this site. "Who is John Galt" is an equally obscure reference to Atlas Shrugged - a question that kept being repeated in that novel. There's no other connection.
Ernst Roehm, Gerhard Rossbach, and the SA. They represented a divide in Germany's gay population. Dom Aryans were recruited into the SA, effeminate gays were sent to the camps.