Idk every time I hear this I wonder, round here the private land is actually more crowded. On state land it’s easy to climb higher, cross a river/reservoir, etc. try some distancing techniques to help you. Another thing I do which works real well, lots of guys are afraid of something. Say it’s bears, if someone happens to catch you in or going in area and asks what you’ve seen, you say nothing but these damn bears. In my state hunting them is very limited but people are chicken turds. You can substitute bears for lions, boars, wolves. It won’t discourage everyone but it might that guy that caught you.
Another thing I do is use almost no bright eyes using power line stantions, counting ridges, and going in the dark. If you use a bright eye mark right to go left. Park on the wrong side of the road, walk down the road. You can guarantee wherever you are some idiot will sit next to you if he can. Who knows how “clean” he hunts.
Use your brain and use as many obstacles/tricks as you can. I’ll bet state land gets better. Another thing, bounce around. You mention a climber near “your spot”? That all you got? Diversify, rest areas, hunt the wind and food sources. I should add food sources change throughout a season. You need to move. One spot will never stay great forever