Possibly the first time I've seen this subject brought up without lamenting the degeneracy of society or other fascist dogwhistles. Nice. It is an interesting question if you can avoid that temptation.
There are ethnic ones, sure.
But the point I'm after here is scalability.
"Everyone wants" homogenous, franchised outfits, so it's variations on the theme of hamburgers or pizzas.
Basically everywhere (at the upper end of the market). It's all the rage to have hyper local dishes made from local ingredients. Many places it's no longer a beef burger but a hand crafted burger from Dave and Sue's farm 10 miles up the road.
But the ornamentation thing is specific fixation of theirs, I have seen it literally dozens of times. There are entire openly white supremacist substacks devoted to the subject.