How can these kind of people elect the likes of Putin to power
Kania - you misunderstand.
You know Russia very well, but in some key respects you still maintain large blind spots.
Level of wealth, intelligence, degree of exposure to travel - do not change how a Russian sees his ruler.
You had Nobel laureates acting as apologists for Stalin. You had people from whom the Russian government stole their children and their life - singing them praises.
This is what the Jewish oligarchs that challenged Putin in the early 2000s did not understand. A Jewish oligarch, however competent, however in love with Russia - cannot even come close to power in Russia, let alone be able to influence it. They paid dearly for their misjudgments.
Power in Russia is sacral and mystical. It whispers to you from the darkness.
What the Jewish liberalizers did not understand is that the Russian worships the throne. The Russian understands that when you are before the Imperator - the only correct position is on your knees.
The ruler is God and Father. He protects, and he feeds. He rights injustice, and punishes evildoers.
Putin being where he is is extremely rational, and extremely predictable.
You need to study Russia more.