I don’t think they’re not saying Putin is just like Hitler. They’re saying Rainer’s out of context quote implies Kim Il Sung would have supported Nazis as a power fighting US imperialism. It goes along with the logic that led the Trotskyists to support ISIS. Obviously we need to have some sort of line of reaction that cannot be supported. If there were an actual imperialist like Germany fighting the US we wouldn’t support them, but Russia is not at all imperialist so that doesn’t apply.