Idk about that, who can tell what would've happened if X event in the past didn't happen.
Hitler, in contrast to popular belief, held some heavy left leaning beliefs, being hiself a vegetarian for example, and apart from his hatred of jews and his nationalistic view, his social views on men and women were also pretty modern. At heart, he still was a socialist.
Also, if the modern trend of nordic and germanic countries is a consequence of the language and the culture of these countries, then it may have happened anyways, because it seems that these countries are way more progressive than the rest of the world.
Saying "If X thing happened/didn't happen, the world would be better" is the world's oldest fallacy I think.