Do you honestly feel good about sitting in a blind or 15 feet up in a tree where a deer doesn't even know you exist and shoot him as he walks underneath , oblivious to your presence. One is considered OK but the other is contemptible. Hmmmm...If it is all about the fair chase aspect then maybe everything except still-hunting should be unethical. Maybe we should outlaw scent killer and camo also., that is just as effective as farm equipment in keeping the deer from knowing you are there to kill him.