An Irrefutable Stance If..
Are people born evil? This question can only be answered in one way if one is a believer of Jesus Christ. If one does not believe in Jesus Christ, then the question can quickly become, 'does evil even exist?'
God explains that man was never meant to know evil. This is apparent in Genesis chapter 3 verse 22 - And the Lord God said, 'The man has now become like one of us, knowing good and evil. He must not be allowed to reach out his hand and take also from the tree of life and eat, and live forever.'
He continues in chapter 8 verse 21 - The Lord smelled the pleasing aroma and said in his heart: "Never again will I curse the ground because of humans, even though every inclination of the human heart is evil from childhood..."
These verses tell the reader: Man was never meant to know the difference of good and evil. But, of our own free-will we chose to be aware. The repercussions of this became a burden for our children who are now born with evil in their hearts.
Is evil learned? No.
Can evil be battled with good? Good is the only way to battle evil. The only way to prevail is to continuously choose good. Just as there is only one way to receive salvation; through the belief that Jesus Christ has already atoned for our evil sins.