There is no logic for Vinnik to be shipped to USA, he is a Russian citizen.
This is a purely political decision by the Greek court, money laundering and crime is much more than 4 billion for which Vinnik is charged.
Bitcoin and other currencies are used by many to wash their dirty money. There are at least 30% of dirty dollars washing through crypts.
This is a world where power is shared instead of justice. I'm not saying that Vinnik is not guilty, I say that crime should be prevented on a global level.