I believe man is just innately evil, like in Lord of the Flies. No matter how pure, every man will fall victim to temptation to evil.
Man made yall. Everything Evil is in mans doing.
Adam ate the apple. That allowed sin, which is evil. Therefore, if he didn't eat the apple, we would all be perfect.
Mankind is what CREATED the idea of evil. Before mankind, everything was naturalism. If you had to kill something for food, it wasnt evil. It was surviving.