Hagia Sophia by Yvonne Ridley
Christianity was always like that. Galileo was persecuted as he opposed religious dogmas. The enmity against Islam from crusades onwards rallied their cause but they plundered n killed their own. In 1204 CE the unthinkable happened and Constantinople, after nine centuries of withstanding all comers, was brutally sacked. Even more startling was the fact that the perpetrators were not any of the traditional enemies of the Byzantine Empire: the armies of Islam, the Bulgars, Hungarians, or Serbs, but the western Christian army of the Fourth Crusade. Finally, the mutual suspicion and distrust that had existed for centuries between the western and eastern states and churches had blown up into full-scale warfare. With the fall of the city, many of its religious icons, relics, and artworks were spirited away and the Byzantine Empire was divided up between Venice and its allies.
This prompted the Vatican to issue an apology for the crimes of crusaders. Nothing like that happened in Muslim history albeit rare cases. There is no mosque on sale anywhere in the West. The place I live has 3 mosques n all were once churches.