Thank you for your interest in my post. I disagree with your view of the movie. I believe it is the classic man against nature story. The “inbred” characters are not the primary force that is faced - it is the river. And the danger comes from the over confidence in one’s own masculinity as displayed by Burt Reynolds and the others who idolize him.
As far as sarcasm goes, I’m too old now to care. No time to swat Gadflies.