One of the major disagreements I had with Troskyists (and oh did we have a lot) was whether old positions are worth defending. Sometimes they aren’t, and I think it seriously weakens your position as a radical to bend over backwards defending, you know, the Soviet Union. Not everything the working class does is good, either. They are not a privileged and infallible class. You grow as a person and as a movement by abandoning positions that were poorly thought out or unsuccessful, and pushing forward with new ideas and methods.