Ones belief in a Creator tends to make that person a conservative since modern liberals don't, modern liberal are secular humanists.
Not even fire and brinstone preachers think man is evil, since they feel that souls can be saved. Each of us can be good, and do good, if we choose that path. Happily most of us mostly do choose the path of rightious living, ergo man is mostly good.
Do you have to teach a child to be bad? NO, it is already instilled in the hearts of man. Evil is sinful. Sin is against God's will. I guess Adam and Eve didn't have to be told to not eat from the forbidden tree either, they were just so good, they would leave it alone on their own.
You are right, Fire and brimstone preachers do not think man is evil, they now man can be evil. It is through God's word that we build restraint from those tendencies.
And yes, every human can be saved, it is thier choice wether or not to do so. If man wasn't evil, then Jesus didn't have to die for sins of mankind.
No sir, it is you that is wrong.