I guess you are ignorant of the fact that there were other anti Franco factions, like Anarchists, Anarcosyndicalists, etc. However, the Bolshevic communists did everything they could to destroy, betray, etc. any other “progressive” pro people factions trying to save the Spanish people from Franco and German army forces. All part of Stalins vicious efforts to be all powerful in Russia to the point of even killing thousands of his own Army officer corp for treason.
There were two sides in the Spanish Civil War, and those on the anti-Franco side were Soviet/Stalinist supporters or useful idiots. But, again, thanks for exposing what side you guys are on.