Its because the Governments of the Arctic States are now regulating such people by creating laws, restrictions and quotas to polar bear hunting. Some of those are:
-Amount of Polar bears that can be hunted
-Restriction to hunting certain age or gender
-Native people only being allowed to hunt them (excluding Canada) etc
Even capturing has quotas too. Those are:
-Who takes the polar bear
-Amount of Polar bears that can be taken
-The Life they will have while in captivity