Animals do all sorts of "stuff" I don't want to do including infanticide, rape, and eating their OWN shit (not another species shit). Why they do these things doesn't make a lick of difference in the context of this argument which you seemingly don't know the origins of.
The fact that you and the equity brigade like to refer to these studies without any idea as to how the stats are compiled, irrespective of the circumstances, as if to say "hey look, intelligent animals do it, therefore it's totally the norm and perfectly calibrated for their circumstances and this is completely relevant to our condition." Is peak delusion.
To that effect, yes, it's a suitable counter point to explaining a natural aversion to homosexuality (original argument from another thread) that runs contrary to the continuance of our species. You can have all sorts of theories as to why we engage in the acts but you aren't going to point to a manatee that raped another manatee to death as some sort of hard hitting science when animals do all sorts of dumb shit.