It seems like people mostly use trotskyist as a stand in for "anti-communist leftism" or "ultra," but what are the actual thoughts he contributed? Is there anything that is useful today and can be separated from anti-communism and the legacy of trots?
No newspaper memes please. I genuinely want to know.
(Ice pick memes are acceptable)
Edit: thanks for the info everyone. I'm proud of you all.
Ernest Mandel provides a good summary of Trotsky's theory of fascism here (see section 3 for key concepts) - https://www.iire.org/node/1004#sdendnote21sym