Any one individual who can clearly and reliably manipulate the bulk of their population by whatever means that they feel appropriate and all for their personal gain, be that wealth or power, could never be described as manic...
Sure, Putins numbers are a fraction of Hitlers, but rest assured, as individuals they are fruit from the same tree...
Hitler was manic as per the definition in his day to day actions :
showing wild, apparently deranged, excitement and energy.
"a manic grin"
synonyms: mad, insane, deranged, demented, maniacal, lunatic, crazed, wild, demonic, demoniacal, hysterical, raving, neurotic, unhinged, unbalancedAll accounts of Hitler generally including him ranting like a lunatic, and unsettling all around him.
The great Field Marshal Erwin Rommel once stated, Fraser.D
Knight's Cross: A Life of Field Marshall Erwin Rommel HarperCollins (1994) p.382 that Hitler
"was a lunatic, determined from sheer obstinacy on a course which would lead to the loss of the last German soldier and, one day, to the total destruction of Germany." This was after Rommel had initially praised the man in 1934 after first meeting him. During the days after Rommel's Afrika Korps defeat at El Alamein in November 1942 Rommel witnessed Hitler's erratic and delusional behavior, with decisions that defied logical military practice. The usually very careful and measured Field Marshal was heard to shout out aloud (p.382) "
The Fuhrer must be a complete lunatic" This was a very bold, but highly dangerous statement, but it echoed what many wehrmacht Generals believed by then, with the wrong / manic decisions being made by Hitler over the Russian campaign and privately they admitted the war was lost, as revealed by historians research since WW2. Many senior military commanders also witnessed Hitler's manic ranting and raving, but could say little without the very real risk of being shot.
When Hitler's whole approach and ideology is taken into account, with his beliefs that whole sections of humanity should be eliminated, along with his wild fantasy on how Germany and the whole World should look, in the realms of ideology, architecture, and general way of life in a complete totalitarian state after war's end within the Third Reich, and after reading and watching much evidence of the reality of the overall situation it is clear Hitler was a madman, a lunatic, completely manic, who had a gift to hypnotize people into conforming to and delivering his wishes. By April 1945 all those who had contact with Hitler in the Fuhrerbunker, Berlin would only confirm he was the lunatic to the end, and hundreds of thousands died, in addition to the 56 million up to that point, unnecessarily due to that.