Atheists and Muslims blame Christians for Crusades but?

didn't the Muslims ume we would eventually defend ourselves? For those who have studied the Crusades it started at Pope Urban's Call to war after the Orthodox said they were being over run by Muslims. The Muslims took over 2/3 of the Christian world including Spain, Southern France, Turkey, Middle East, North Africa parts of Greece and the Slavic territories and Meditarranean islands. Is that not just self-defense? When the Spaniards finally forced out the Muslims with the Inquisition/Reconquista was that not just retaken stolen land? How in the hell are the muslims mad about this when they slaughtered people across more than half of the former Christian Roman Empire and when people finally fight back its an atrocity? Another question. Do you think if the Crusades hadn't happened that the Muslims would have pushed further into the heart of Europe past where they were in Greece and France? Sure there were mistakes made during the Crusades but how about Muslims taking some blame too.