Got called "Pan parag" for asking reference of a data

Why did I ask him for the source? Because I was surprised to learn that Kerala contributes more personnel to the Indian Armed Forces than Uttar Pradesh. Have I ever engaged in any conversation with this person apart from the one in the screenshots? Absolutely not. I understand where this is coming from. Many people from our state do troll Kerala online. Humor is fine, but his remarks seemed hateful. I want to ask—what can we do to stop this? Online trolling does affect young minds, as children often fail to distinguish between the online world and reality.