Trotsky was both wrong and an asshole. Trotsky’s plan of Permanent Revolution rested on the idea that the peasantry would erode socialism, because he thought they could not be truly aligned with the proletariat. That’s why he wanted to kick off revolution in the west, hoping that would save Russian socialism. This was, of course, proven false, as socialism survived and trying to build up socialism together with the peasantry worked out.

Trotsky then spent much of his time attacking the soviet union, essentially whining due to his loss.