They can't show you any evidence. Just more conspiracy theories, fantasies and propaganda that these trolls continue to push.
I've mentioned before that even if Putin left office his replacement would likely come from the same political party as him which is United Russia. That makes sense considering United Russia controls over 70 percent of the seats in the State Duma and Federation Council.
After that the most popular political party is the Communist Party. And these democrats here and mainstream media propagandists shouldn't get their hopes up. The Communist Party there is probably more socially conservative and dislikes the West just as much as United Russia.