Oh, I'm sure believing that WWI and WWII happened because of irrational hatred is a comforting thought to Germans, but it's not true.
You're such a git. If you really think that Germany alone caused WW1, you've been spoon-fed too much propaganda. Yes, Germany started WW1, totally true. But at that time, half of Europe was waiting for an opportunity to kick this or that neighbours ass, which is largely why everyone jumped at the chance to have a war. At any other time in Europe's history, the assassination of some successor of some second-rate country would've barely made front-page news, let alone cause any diplomatic trouble.
And you illustrate that many Germans still hold the same kinds of beliefs.
"git" is not a strong enough word for you, but I can't think of a better one right now. Maybe you could try history and actual arguments instead of ad hominem attacks. And if you insist on attacking people you don't even know, you could try to at least make it somewhat funny or interesting instead of just boring and stupid.
Germans were motivated by the strong conviction that their culture, economy, and system of government was superior, in particular to the Anglo Saxon model, and that they had a moral duty to spread it across Europe.
France and England barely avoided a war between themselves in 1904 and forged an alliance that Russia joined in 1907. You could have heard about it in history class if you hadn't been asleep, it was called the Entente and if you open your mouth to talk about WW1 and you forget to mention the Entente, you prove to everyone with some education that you're an idiot.
Together with everyones colonialism and increasing tensions due to colonial wars and growing military everywhere you got a complex diplomatic situation with several secret pacts (Italia and France, 1902, for example) that creates a situation that even serious historians call a powder keg and that they largely agree would have blown up sooner or later.
You attempt to simplify complex history to one source and one reason and one actor is typical of american movies where you always need a hero and a villain to tell the story, but it very, very rarely is appropriate to real life.