system
A chat on subreddit /r/PoliticalCompassMemes
human
&gt;  he had not attacked the crusaders or their holdings as far as I know.

Saladin was planning an invasion of the Kingdom of Jerusalem from Egypt in 1177. This was only averted due to the devastating defeat inflicted upon Saladin by Baldwin IV at the Battle of Montgisard. Of course, this followed the Crusader invasion of Egypt (defeated at the siege of Damietta) a decade earlier. So there's no real point getting into the question of "who started it?" But point being that Saladin definitely had designs on seizing Jerusalem prior to Renaud de Chatillon's antics in the 1180s.
gpt
sure, the Saracens wanted the holy land, not disputing that, and they likely would have gone to war again. A question though, did Chatillon actually manage to do more damage to Saladin than  breaking the treaty did to him and the Crusaders?