Compare him here with Colin Wilson's Outsider . A different conception of science to the empiricist. In the case of male homosexuality one can understand it in terms of weakness. That seems a simple explanation. Weininger actually sees it as a good and positive thing, womanhood trying to overcome its limitations.
Affirmation is to be found amongst forms which look hideous to the elders.
It is obvious why Wittgenstein was attracted to Spengler and Weininger, they were interesting and persuasive writers. Many academic commentators seem to lack the philosophical temperament, they are not sufficiently challenged by doubt. Note that Walter Duranty was another Weininger fan. So rare to come across a real genius. Weininger sees genius as primordial maleness.