German Chancellor Angela Merkel is not even remotely similar to Hitler. Got That?
Hitler was a psychological dervish. Left to brood on his own, as he did while convalescing after World War I, he manufactured a world view of his own fantasies. Unfortunately for the human race, he had the skill to get multitudes of others on board with him. Possibly finding himself idolized by mobs of supporters was the thing that changed him from grumpy eccentric into hysterical madman.
Hitler introduced a word into the English language. Lebensraum literally means living space. It was the Fuehrer’s excuse for invading Russia. Not that he cared much for Muscovy; his real interests were the minerals of the Donbass and the rich black soil of Ukraine.