try talking to them first. Politely explain your safety concerns and depending on how that interaction goes you’ll know where you stand. while you see their blind/camp to close to your property line they may see yours as encrouching on thiers. i would suggest that you would both move away from the property line away from each other. just my thoughts.
i’m absolutely going to talk to them. and I definitely get your point of moving ours, the difference is our house is the only house in the area. he just bought 100 acres and his house is no where near where he set up. so our home is the only one in sight. just weird to me i guess. that is a good point about them thinking we are to close to theirs