Actually there IS evidence now that Ithink of it.
If evo is to be accepted as factual and we descended FROM apes, Apes and monkeys will pack fudge with abandon in significant percentages.
At this end of the timeline there are less than 2% of gays in the genpop. Ergo, as we advanced up the evo ladder, homosexually has documentedly decreased.
Game/set/match.
Game/set/match? Then we got government schools and the sexualization of a half dozen generations and everybody’s ‘gay’ today.