Trotsky thought that certain so called left forces were acting the way they were and taking certain positions because they were in their infancy and their movement was immature. It was Lenin who pointed out and taught Trotsky that there's class forces behind every political party at play, this is what only the SEP/ICFI argues as we have learned the political lessons off these giants of the 20th century:
January 10, 2016 ·
The Three Sources and Three Component Parts of Marxism, Lenin 1913
"People always have been the foolish victims of deception and self-deception in politics, and they always will be until they have learnt to seek out the interests of some class or other behind all moral, religious, political and social phrases, declarations and promises. Champions of reforms and improvements will always be fooled by the defenders of the old order until they realise that every old institution, how ever barbarous and rotten it may appear to be, is kept going by the forces of certain ruling classes. And there is only one way of smashing the resistance of those classes, and that is to find, in the very society which surrounds us, the forces which can—and, owing to their social position, must—constitute the power capable of sweeping away the old and creating the new, and to enlighten and organise those forces for the struggle."
I get the impression from little bits I've read that Trotsky was more of an idealist while Lenin was more pragmatic. Everybody knows what happened next - execution after execution. And not confined at all to the rich and politically powerful. Lenin seems to be saying here that education will be the permanent solution to the working classes being oppressed. Me, I've lost faith in education. It was supposed to help us live peacefully together but it seems to be just a tool in the hands of the different political factions. For the moment, I think social democracy is the best of a bad lot.