While you're not incorrect that happened and it's not something we should forget, you also can't deny the 80 years of culture shift that have happened since then.
That's false. You should pay attention to current events.
History repeats. We are on the verge of WW3. If you care to look, you can see the signs already. Human nature never changes. Fundamentally, nothing has changed in 80 years. You are a linear thinker, you should try and learn about the cyclical nature of the world.