It's a symbol that started as the emblem of a rebellion against the United States in the name of perpetuating slavery (take a look at the constitution of the CSA if you doubt the latter), and was added to state flags as a reaction to the Civil Rights movement.

If you love Johnny Mercer and Elvis Presley, there are better symbols. If you love the South because it's the land of those great American leaders Thomas Jefferson and Martin Luther King, you're not likely to choose that symbol.