I was not alive in 1930's Germany, but I did travel to Russia between 1991 and 2011, and I can tell you Russians were very resentful.
Recently I saw someone here claiming Gorbachev was living in Switzerland. He was actually living in Russia. Putin did not fear Gorbachev, because Russians did not respect him. They were resentful of him being such a failure (in their eyes), and not even making a profit off it. They disdained and ignored him.
Today, Putin is riding a growing wave of sanctions-hatred.
Putin came to power long BEFORE the sanctions. He rode a wave of anger over the collapse of the Soviet Union which was very similar to the anger over the collapse of the German Empire.
Hitler was preceded by Paul von Hindenburg, who was born in Posen, The Kingdom of Prussia. After WWI, Posen became part of the newly formed Poland. He was a 73 year old man who was banned from going to the estate of his family, where he was born, because it was in a foreign country. But he settled in Neudeck, Germany, which was as close to Posen as he could get... He did not live to see it, but after WWII Neudeck became part of Poland, and again his family was banned from going there. Almost 50 years after WWII, his family was finally allowed to visit their former estates in Posen and Neudeck.
There were millions of other Germans who were pushed out of their homes by new countries... AND THEY WERE NOT HAPPY ABOUT IT.
There are likewise millions of Russians who can no longer freely go to Estonia, or Ukraine. These used to be part of their country, but are no longer. Putin adds to that Finland, much of Poland, and Alaska that used to be Russian. They want their empire back.