Why would studying the crusaders be dangerous if you only included the descriptions of massacres and cruely?

Studying the Crusaders through a narrow lens focusing only on massacres and cruelty could create a biased and distorted perspective on the historical period. It may lead to the perpetuation of negative stereotypes and contribute to further misunderstanding and division among different cultures and religions. A more comprehensive and balanced approach to studying the Crusades, including their political, social, and economic aspects, would provide a more nuanced understanding of this complex historical event.