I've lived in the upper-mid west, the east, the south and the west.
I know Americans are open minded and inclusive.
You (if I'm reading you correctly) are intimating that I think there is a prejudice in the South against Yankees.
That isn't my view, though they're much more conservative, culturally and economically, than a NYC liberal named Donald Trump.
Oh there is indeed a prejudice against a stereotypical Yankee in the south...especially the Deep South
But it’s pretty superficial....if a Yankee comes here and is gregarious and says y’all and supports our ways
We welcome them....wholeheartedly....two of my key workers are Yankees.....Ohio and Michigan
Trump for many endless argument reasons is popular here
Being frank and politically incorrect is part of it
But if a Yankee comes here and looks down on us and say organizes to strip our CSA memorials and stuff then we detest them
75 years ago we would have violently run them out or hanged them
The Los Angeles and other west coast sorts are most likely to be that way at least in the exploding Nashville metroplex