Damned Christians

[Angrboda]

Easily.

"Lo tirsah" does not translate directly to kill and allows for self-defense, and the Crusades were in response to hundreds of years of Islamic aggression and taking of slaves across the Mediterranean, with the original specific goal of reclaiming cities with century old Christian communities - many founded by Europeans - that had been occupied by the Caliphates.

Even if the Crusades were "just" against the Muslims, it doesn't make Catholics look any better.

But you are uninformed, as usual. Crusades were against all religions that were not Catholic. Thus, you had the slaughter of Cathars in France known as the Albigensian Crusade. There were also Northern Crusades against non-Christians in Europe. Crusaders would also regularly slaughter Jews in Europe. There was also the famous Battle on the Ice fought in Russia when the Catholic Church tried to violently impose Catholicism on the Orthodox Christians in Russia and failed spectacularly. And so on.

1096: The First Crusade was launched in this year. Although the prime goal of the crusades was to liberate Jerusalem from the Muslims, Jews were a second target. As the soldiers passed through Europe on the way to the Holy Land, large numbers of Jews were challenged: "Christ-killers, embrace the Cross or die!" 12,000 Jews in the Rhine Valley alone were killed in the first Crusade. This behavior continued for 8 additional crusades until the 9th in 1272.

1099: The Crusaders forced all of the Jews of Jerusalem into a central synagogue and set it on fire. Those who tried to escape were forced back into the burning building.