That's part of what makes it great
It's some stupid rando British kid making a meme that fails on every possible measure. The "joke" is unfunny, so juvenile even I wouldn't laugh at it; it uses the British slang, the picture isn't even that congruous, it's from the American South (as you noted). It's impressively bad. It's almost historically bad. It's not just the so-baf-it's-good thing, but also on another level. It's the Mod Wang of bad image macros.