Amidst the frenzied hand-wringing, I think the issue I grok is that you see "free communal sex" as the only alternative to fidelity.
In fact these are two thinly-populated extremes on the bell curve, and neither is evolutionarily common or preferred. A few billion human beings (apart from a few trillion other non-human beings) exist in that seemingly happily and fat middle ground where companionships of marriage-like relationships coexist with sexual non-exclusivity. Further, AFAIK, the age of Aquarius (I was only 5 or 10 then!) preceded discoveries of bonobo behaviour by a few decades, and again, AFAIK, was never justified using the latter. Seen differently and on a more macro scale, the age of Aquarius has always existed and continues to exist in all living cultures, petri dish included - and I can imagine that this must be severely distressing to most sexually conservative folks. :-) > > In fact I don't play cards. My last card game was 25 years ago. All I am > saying is that if an animal model seems to fit a particular pattern it does > not necessarily mean that it is right for humans.
