I'd like to add some theoretical spice here: the real reason for their attitude towards the SAV boils down to the questions of transnationalism, internationalism, and "international brotherhood of the peoples." Die Linke is a nationalist (not in the right-wing pejorative sense) organization. The CWI is an internationalist organization. The USFI is an "international brotherhood of the peoples." The IST group in Germany broke relations with their big group to be a national tendency within Die Linke.