I think that the Celtic influence in the South is a bit overrated anyway. There was probably more Celtic influence in the South than in many regions, but they were still Celtic drops in the Anglo-Saxon ocean that is the American melting pot.
I thought I'd just insert a little scientific logic in a conversation that was nearing unintelligible due to misinformed passion. As for the Celtic stuff, I don't mind it too much, since I find joy in attending all those festivals, including things like Oktoberfest and the Celtic festivals----I can't resist authentic food of any kind, unfortunately.
But, isn't there a little Spanish Armada background in "Black Irish" to begin with?