What was the negative impact that the 4th crusade had on the Cristian world explain?

The Fourth Crusade (1202-1204) significantly weakened the unity of the Christian world by diverting its focus from the Holy Land to the conquest of Constantinople, a major center of Christianity. The sacking of Constantinople in 1204 deepened the schism between the Roman Catholic and Eastern Orthodox churches, fostering long-lasting animosity and distrust. This betrayal undermined the Crusaders' moral authority and alienated potential allies in the East, ultimately hindering future efforts to reclaim the Holy Land. The events of the Fourth Crusade marked a pivotal moment in the decline of Byzantine power and the fragmentation of Christendom.