Crusades were multiple failed attempts to take back Jerusalem from the Muslims, not to protect Europe from Islam
Louis IX sending a letter to as-Salih Ayyub that said :
In November, Louis marched towards
Cairo, and almost at the same time, the
Ayyubid sultan of Egypt,
as-Salih Ayyub, died.
A force led by Robert of Artois and the Templars attacked the Egyptian camp at Gideila and advanced to Al Mansurah where they were defeated at the Battle of Al Mansurah, and Robert was killed. Meanwhile, Louis' main force was attacked by the
Mameluk Baibars, the commander of the army and a future sultan himself.
Louis was defeated as well, but he did not withdraw to Damietta for months, preferring to besiege Mansourah, which ended in starvation and death for the crusaders rather than the Muslims. In showing utter agony, a Templar knight lamented :
-Templar CAC
Around 1250 a poem bewailing the defeat of the Seventh Crusade by Austorc d'Aorlhac refers to Bafomet
going 0-7 in Holy Wars against Muslims lead to the Templar knights abandoning Christianity. the templar knights were eradicated after this