> They are used for profit by their local oppressors/gangs and by western cryptobros.
For a razor-thin margin, maybe. It’s still the cheapest way to move money out from Russia, meaning it’s not used there to pay taxes (i.e. fund the war!) And the alternatives are using banks or money transfer systems, which I think are more likely to be pro-government than just a bunch of local guys that want to make some cash.