"Tell me, when did the Ottomans do that ?"

Honestly? Give it a rest.  When the soldiers of the Rashidun Caliphate took Carthage, they burned the place to the ground and killed everyone they could get their hands on.  This mythical story you seem intent on telling, where Christian Europeans were all monsters and Islamic Persians/Arabs/Berbers/Turks were all beneficent rulers is total baloney.  It's coming firmly from your own personal biases.  We can go all day, back and forth, with examples of atrocities on both sides, tolerance on both sides, and intolerance on both sides, because the history is so vast, with so many players, that there's a bit of everything.

Your bias is clear. You'll rationalize away the more extremist and fundamentalist Caliphs, and you'll praise and extoll the kinder, gentler Caliphs.  You have no intent, whatsoever, of being an honest and neutral student of history. You have an agenda.