This is the opposite of visible reality. You can simply look at a fucking map. Islam has taken vast swaths of territory from Christendom, all by the sword, all by mass murdering the original inhabitants. You can visit the places that used to be Christian and see minarets everywhere. European civilization used to reach into Syria, into North Africa. You can see the Arch of Septimus Severus in Leptis Magna, in what is now Libya, for example. It’s a beautiful sight:
https://en.wikipedia.org/wiki/Arch_of_Septimius_Severus_(Leptis_Magna)This massive reach of European civilization is gone, because Islam slaughtered all the white people and took the land.
Islam conquered and kept not only all of North Africa, but a large swath of Balkan Europe. Bosnia, for example, is majority Islamic now. Albania. There’s a lot of brown people in those countries now, which used to be white, because of all the rape and murder they did.
Islamic societies, which are founded on the bones of the conquered, are orders of magnitude more stable than Christian ones. Christians are constantly losing territory to Islam, and even when they aren’t doing that they are constantly adopting sweeping social changes, electing Jews and wogs, expelling or legally neutering their leaders, having weird revolutions, adopting new Constitutions. Oman and Morocco have had continuity in their monarchies since the fucking 8th century.
Violence is the foundation of an effective people. If you aren’t killing, you are losing.