I think by now you read my other comment (the comment chain with June) so it should be cleared up why I didn’t associate polygamy with patriarchy.
As for me being triggered by the world patriarchy: you are absolutely correct. It’s a habit I’ve built on less discussion friendly sites that I need to get rid of. Unfortunately for now my immediate assumption upon reading that word (unless in an academic context) is that whoever uttered it has a pretty hardcore disgust of men. Fortunately I have not seen these takes around here much if at all hence my need to lose that habit. It’s definitely not healthy and, as seen in this trainwreck of a rant, definitely doesn’t contribute to a healthy discussion.