Think of it like this, say your little brother got angry at your youngest brother and hit him. Then your mother and father get mad at you for starting it. This is what Germany felt after WW1. This sowed bitterness into German society, and with Hitler on the stage. It turned into obsessive hatred. Soon people had differing opinions, and they turned radical fast during the Great Depression. As someone did say. "I am more afraid of peace, than war."
