Cornbread: Has the flavor and texture of sawdust because they insist on never adding any sweetener, because cornbread with flavor, why, "That's Yankee cornbread." They even acknowledge that it's inedible on its own, and you have to smother it in butter or sauce to make it edible. The'll spend their entire lives eating dry, flavorless cornbread because they insist that's what Southerners do, because to do otherwise is what Northerners would do.
Southern sweet tea: It's like drinking maple syrup. It's disgustingly sweet. I used to drink my tea sweetened with sugar or honey until I had to work for an extended time in the South a few years back. I got so sick of their sweet tea that I've only had unsweetened tea since then.
That must be a lot of you, then, because the Southern states have the highest obesity rates in America. They also have the highest rates of diabetes and heart disease. It might surprise you to learn that frying everything, covering everything in gravy, and drinking half a pound of sugar with every cup of tea will lead to weight gain.