Geez, folkies can be such a bunch of fussbudgets.
Lonnie Donegan's "Ain't No Cane on the Brazos" is about as inappropriate as you can get, but it sounds great.
And how did Shenandoah become a sea shanty? Some sailors liked it, I guess?
I've heard Texans sing sea shanties and claim they were songs from "back home".
Once, years ago, in the former Yugoslavia, a Croatian group attempted "Knock knock knock on Heva Do."
Maybe I chuckled too, but music doesn't have to be too serious.

Poor Cockney bugger; I hope he's still singing.