sodapop, that's what the gun enthusiasts in the USA say - it's not guns that kill people, it's people that kill people. That is, on the face of it, true, but a person with a gun can kill an awful lot more people in a give time than a person with a knife can.
Deer culling could be done for food, not for sport, and by people who actually know how to kill the deer cleanly and not just for fun. I agree, phoenix, that it does need to be done for the reasons you give.