You can vote yourself into authoritarianism, but you cannot vote yourself out. And when that authoritarian you love so much makes a major blunder, invading Europe for example, he takes everyone with him, and that's by design.
Russians and Belarusians made their mistakes back then. Now it's just a consequence of not fighting for their democracy strongly enough when it was still possible.
This is the thing that kills democracy - it is taken away from you very slowly, step by step, and at any given moment it looks like it's not a big deal. And then when it's a big deal - you realize it doesn't matter what people think. You can't change anything.
In my country (Poland) the fight is still going on, but I'm not optimistic.