Exactly.
Don't disagree with anything you posted.
Most of my experiences with non-resident turkey hunters have been in Northern West & Northern Middle TN, where the majority of the non-resident turkey hunters are from KY. By & large, these non-resident hunters are no different than any other hardcore accomplished resident TN hunter. Less avid KY turkey hunters are simply less likely to ever travel to any other state to go turkey hunting.
The avid KY turkey hunters come to TN mainly to take advantage our our TN season opening a week or two earlier, and our TN annual bag limit being exactly double the KY turkey bag limit. Many of these guys hunt a week or two (as non-residents) in Florida, then Alabama BEFORE they come hunt TN for a week or two. Then they'll typically limit out in their home state of KY in 2 or 3 days, then move on to Missouri, and other western states with later opening dates. Some of these guys literally kill dozens of turkeys annually.
Of course, similar can be said for many TN resident hardcore turkey hunters
who also start out non-resident turkey hunting in Florida, Alabama, come back to TN, then on to Kentucky, Missouri and other western states later.
I personally have no problem with non-resident hunters, as it would be very hypocritical of me if I did.