In 1999 a Channel 4 programme reworked some of the issues in these papers but did not emphasise homosexuality rather heterosexual sado-masochistic practices.
http://www.channel4.com/plus/secret_history/sex6.html
People on the left have not taken this latest book up, and probably would not want to emphasise the theme if it was to lead to more prejudice against homosexual behaviour.
It may be that the real psychological story is one of Hitler as a victim of physical and sexual abuse. To explore this however, would be to do a much deeper job of unpacking the modernist 20th century idealist versions of history.
I have seen some speculative stuff on the internet that could make out quite a case for abuse, but I do not know the details of Hitler's biography to be able to suggest whether this possibility is a sound one.
Whatever the truth, "gay" does not seem intuitively to convey what Hitler's psychological problems were.
Chris Burford
London