But it's not just economic sanctions out of the blue in and of themselves. It's a sudden and near-total exclusion from the global financial system as a response

But it's not just economic sanctions out of the blue in and of themselves. It's a sudden and near-total exclusion from the global financial system as a response to a war which is proving to be quite unpopular and tremendously costly ... and it's not exactly going to plan. I'm not making any predictions, it could very well be that Putin hangs onto power no matter what the outcome. But this is not at all like the USA slapping sanctions on Venezuela, DPRK or Cuba.