Well damn.
No - I very deliberately used round peg in the square hole, initially just to avoid the cliche, but the more I thought about it, the more I liked it.
Conservatives pound on round/natural/organic/smooth pegs to try to force them into square/artificial/contrived/rigid holes.
I liked it anyway…
I’m roundaboutly reminded of one of my favorite novels - Greener Than You Think, by Ward Moore.
It’s a science fiction story about the end of the world that was written in the late 40s. The proximate cause of the end is all of the landmasses of Earth being smothered by a gigantic and very aggressive strain of Bermuda grass, but the real cause is the utter and complete failure, due to ignorance, greed, selfishness, short-sightedness, incompetence, arrogance and so on, of every attempt to combat it.