I'm still not clear what they're actually supposed to be doing that is bad. Do you not know either?
edit: I just realised you thought I was providing a direct quote, I was just paraphrasing, but I think it accurately captures the spirit of this footnote. I'm happy for someone to provide clarification on how this isn't a reference to the widespread conspiracy theory.
You seem to be reading more into it than is there. It isn't the point that left ideology is necessarily bad, but that the fighters for it are shifting tactics because Marxism wasn't working.
Your paraphrasing is totally off (IMHO) because the footnote is neutral about the desirability of the gay lifestyle.
edit: I just realised you thought I was providing a direct quote, I was just paraphrasing, but I think it accurately captures the spirit of this footnote. I'm happy for someone to provide clarification on how this isn't a reference to the widespread conspiracy theory.