Hitler, a homosexual?

My knowledge of Hitler and his cahoots is vague enough to be taken by surprise at this possibility.

However authors Scott Lively and Kevin Abrams in their book The Pink Swastika: Homosexuality in the Nazi Party put forward a possibility that Hitler may have been a homosexual, atleast for practical reasons, to make a living.

“The authors present a reasonable body of evidence to the jury of public opinion, including the possibility that Hitler earned extra cash as a youthful Viennese prostitute, serving a male clientele.”

Frankly, I am skeptical.