So one religion founded by a pacifist and another founded by an imperial war leader are entirely equivalent in their moral teachings?
I leave an untarnished assessment of that question to you. However…
The difference is that Christianity accepted secularism and scientism during the Enlightenment. This came after Christian atrocities (the Inquisition, the Crusades, etc.) that were rightfully criticized and critiqued by fellow Christians.
You are correct that outrage from the West won’t change Islamic barbarism. As it did with Christianity, that change must come internally. Islam’s continual rejection of the liberal democratic values that make us superior societies is wholly of its own doing.
Yes, our societies are superior. We don’t treat women as property of their husbands, don’t outlaw homosexuality, don’t stone apostates for their spiritual choice. I’ll be damned if a “live and let live” bubble of politically-correct silence is the best we can do.
The more Christianity dominates a nation, the freer and more equal their people. The more Islam dominates a nation, the more repressive and barbaric it is. This is an irrefutable fact, and to suggest religion as some ancillary feature like the mountains or forests is willful ignorance in the fraudulent name of political sensitivity. If you stand for the things that make us great societies, you owe more than a suppressed tongue to the millions suffering in the Islamic world.