Hunting in the south sometimes is dog eat dog. You have to stand up for yourself and if it's BS tell them it's BS. If they tell you that you can't hunt there land take your truck back there hook a chain to your stand and pull if off the tree or wait until he gets in it take a can of gas and burn it while he's setting in it. (I suggest you take the gas in a couple cups so he doesn't know what you're doing.)
Just go hunt public lands or your own property. Sounds like they are just taking advantage of you and if you let them they will continue to do so. It has nothing to do with the south that happens everywhere. Tell 'em to go F*** themselves and if he wants to fight about it do so. Win or lose they'll know you ain't gonna take their s**t.