I don't have a name for you. Tennessee is blessed with several lawmakers who understand.
As to off-license open carry I'm concerned that you attach too much importance to it. I am very much in favor of the Tennessee system. While people ideally should be allowed to carry unrestricted, unfortunately there are elements infesting our country that render this notion foolish if not insane.
If you favor totally unrestricted carrying of firearms I invite you to go to any Walmart on the weekend and then ask yourself if you really want these people wandering around legally armed.
Remember, a large proportion of the people making decisions for the country can't wait to sell us down the river for one more term. They don't give a tinker's dam for our heritage or our future. Thanks to them we have to accept restrictions on freedom in the interest of self-preservation. It's a devil's bargain but we're forced into it.
All that said, I'm not that big on open carry to begin with. There's a disquieting air of "look at me" about it that turns me off. But hey, that's just me.