Why should someone be obliged solely due to where they were born? I'm sure there are many incredibly competent de-throners in Europe, surely they should also get out of their chairs and help?
Every post-communist county did that on their own.
It can be done. So Russians can do it too. They just need proper motivation.
And that motivation for countries that did that was abject poverty that made the people realise that course change is needed.
No they haven't
https://ti-ukraine.org/en/news/no-progress-ukraine-s-result-...
And you are going to judge what system of power Ukraine has based on 2021 datapoint?
How quickly did your country got rid of corruption that plagued it?
It's a process that just stars with replacing corrupt system of power. You need to adjust whole public sector after that. It can take decades.