I disagree, frankly. Trotsky was, most charitably, someone who genuinely believed that constructing socialism was a doomed effort in the USSR, and that the peasantry would not end up allying with the proletariat. With this reading of Trotsky, he was an active sabateur of the socialist project helping organize very real and legitimate Fifth Column elements terrorizing the Soviet administration and public at large, out of a belief that this was necessary to implement socialism. The problem is that Trotsky’s “permanent revolution” is wrong. The peasantry became fully aligned with the proletariat throughout the early 1930s, just before the purges. Stalin’s faction took the correct course of action, focusing on building up heavy industry to prepare for a coming resumption of World War. Communism must be global, and cannot be achieved in one country. However, the transition to communism globally must be made by socialist countries. The Soviet Union was genuinely socialist. Social ownership was the principal aspect of the economy, and the working class did run the state and direct the social surplus. The Soviet Union was actually very efficient up until the Gorbachev era, it wasn’t Stalin that set the seeds for downfall but Khrushchev. The public by and large supported and loved Stalin until several years after Khrushchev’s secret speech, and Khrushchev’s reforms turned a blind eye to black markets forming a capitalist class that was effectively able to form a cohesive bloc. China has capitalists, but it integrates them into their system so as to control them and limit them. The later soviets did not, and this grew ideological withering within the CPSU. To return to the purges, the assassination of Kirov by the Fifth Column elements prompted response. Regardless of the legitimacy of the trials, the fact of the matter is that there was a Bolshevik Civil War, so to speak. Even if we assume that all sides of it had good intentions, or even if we assume Stalin had bad intentions, it was still the more popularly supported and democratic decision to purge the party of the actual, real threat the Fifth Column presented, which is why Stalin was still so supported by the public until well after his death. The idea that the Soviet Union was governed by an iron grip is a misconception. There were weaknesses in the Soviet democratic processes, and crisis after crisis effectively limited the extent to which democracy could effectively function. However, I intensely disagree with Trotsky’s suicidal plans, and I believe that the CPSU made the correct decision to reject such plans, and were forced to respond to real internal sabotage that stood to collapse the entire soviet project.