I've spent a few vacations in the South and have seen no evidence anyone hates me for having northern plates. I think you and your few holdouts just like to have something to irrationally hate.
Well we like the yankee touristas because they come, spend money and then thankfully leave. Its the ones that come down, stay then start voting to try to turn GA into the same Northern chithole they left behind that put a burr under our blanket. :-)