Also, let's for a moment assume that the premise of The Pink Swastika is indeed true and grounded in reality. Why do you suppose that those Nazi homosexuals became such militant, deranged psychopaths?
I'd posit it would be because of the society that ostracized, persecuted, and oppressed them. And I'm not just saying that because I hate homophobes and disagree with what you're saying, either. There's actually plenty of evidence that shows receiving that kind of treatment causes the victims to perpetuate it themselves. After all, that's exactly how the cycle of domestic violence and abuse works. Of course, that doesn't by any means excuse their actions or make them completely innocent, but it does place a portion of the guilt on the homophobic society that more or less made them snap, so if you wanna argue against LGBT rights, this ain't exactly a can of worms you wanna open.
In conclusion, like I stated in my earlier comment, The Pink Swastika offers no convincing evidence to support the claim that there was a disproportionately large amount of homosexuals or homosexual behavior in the Nazi Party. Even if it did, that would mean homophobes were most likely partially to blame for the Nazi's atrocities, so either way...