Sorry, the only days we “Anglo-Saxon” Southerners care about are Independence Day, Veterans’ Day, and Memorial Day. We don’t need any of that ethnic stuff. We are ethnically “American” and that’s about it.
But, by all means, keep on celebrating various “heritages.” We enjoy trying the food (except for the Haggis...). Besides, would you really want to celebrate a day with British cooking?
I love haggis. I also like the German version called Saumagen (stuffed sow's stomach). Maybe it's because my ancestors came from Scotland and Lorraine.