I think you are incorrect, an accurate description is not a personal attack.

Either you referred to what we call “buns” as “muffins” (and ate them without anything in them), which is weird, or you thought we called muffins “buns”, which is also weird. And you were sticking to your guns while american-splaining to a brit about british culture (without even being right), which is weird and kinda offensive.

I’ve had enough of people hiding their bad behaviour behind a wall of “please be civil”. I will be as uncivil as I like in calling out bad behaviour, and I will think very poorly of anyone who thinks I shouldn’t.