In Jainism, we should deal with harmful or “evil” people with ahimsa, samatva, and karuna — non-violence, equanimity, and compassion.

Jain approach:

• Do not hate them. Hatred creates new karma.
• Do not imitate their behavior. Stay away from wrong actions.
• Protect yourself wisely. Non-violence does not mean being careless.
• Remain शांत and balanced. Keep the mind free from anger and revenge.
• Wish for their spiritual improvement. Every soul has the capacity to change.
• Practice forgiveness. Forgiveness is a strong Jain virtue.
• Use right conduct. If needed, stop harm through peaceful, ethical means without malice.

Core Jain principle:

The person is not eternal “evil”; rather, the soul is covered by karma and delusion. So the Jain response is: reject the wrongdoing, not the soul.

In simple words:

• Be kind
• Be careful
• Be firm in dharma
• Be free from hatred

This is the Jain way of facing harmful people while protecting purity of soul.