@MythicalPinkTrashCan @serenlas 
I didn't know it was that bad. It's disturbing that you both did have history classes but that what they teach you is so slanted and incomplete. The role of the catholic church in world war two is very
grey While the Vatican remained officially neutral, in practice many cardinals and clergy collaborated to varying degrees with the Nazi regime. While there certainly were people who rejected the murdering and crimes of the regime on religious grounds, the relationship between the catholic church and facism at large is ... complicated. I guess they didn't say much at your school about how Hitler was by any contemporary standard an observing Catholic, and how every member of the Wehrmacht (the Nazi German army) wore the slogan 'Gott mit uns' - 'God (is) with us - on their belt buckles. Also let's not forget the holocaust happened in a overwhelmingly christian Western Europe by people who would call themselves devout catholics and protestants.
I'll stick to my own country (Belgium) because I'm a bit more familiar with the details. A general observation which may surprise you is that in many Western European democracies on the continent, the major christian parties aligned most closely with the church often had sympathy for Mussolini's facism. They certainly weren't the biggest proponents of democracy, and in many countries these parties were locked in battles with the 'left' socialists and communists to capture a political majority, with the somewhat smaller liberal fraction joining 'left' or 'right' coalitions (in western Europe liberal means economically right but socially left, and pro democracy). Christian parties were often right of center and shared a fear and hatred for the evils of godless Bolshevism. They often had an autocratic streak (cfr the Ultramontanians).
It was this anti-communist stance ( that was very much also supported Pope Pius XII) that formed a rallying cause since the thirties and when Belgium got occupied in WW2, a lot of schools which were run by the church or christian religious orders like the Jezuits,
actively recruited for Hitler's armies and to fight on the Eastern front - against the Bolshevist USSR. This support of the Christian institutions is one of the main reasons that Belgium send tens of thousands of
voluntary combatants to fight for Nazi Germany (apart from the many more 'claimed' to fight or work in Nazi German factories). They were often were part of the most ideologically committed waffen SS (the NSDAP's personal army, so to speak, who were known to be extremely brutal in their violence on the front and considered slavic and jewish people to be "üntermenschen" not worthy of much consideration )
In general, you could say that the catholic church more or less accommodated it's stance along national borders - depending on who was in power, they sung a different song.
The idea that the holocaust would not have happened if only people were stronger believers is pretty much rejected by the facts of history and I agree it's pretty
gross. Not only because it turns a blind eye towards the responsibilities and actions of the church and it's believers but also because imo it fundamentally misunderstands human nature, and how the allure of facism can sway populations and drive them to do utterly inhumane things.
If we can't in earnest discuss the dangers and try get to an accurate understanding of what was going on, how can we hope to guard ourselves from the same thing happening in the future ?
Donals Trump / Viktor Orban / Erdohan / Putin / ...