I’ve always thought Orwell’s idealism changed a lot after his experience in the Spanish civil war...his excellent book, “Homage to Catalonia” pretty much expresses his view of war and honed his hatred for communism. I read it quite awhile ago, but as I recall he spent much of the book describing the political bent of the many, many, ideologies battling in that absurd war.
“Homage to Catalonia” is a great read. Orwell had a very difficult time getting it published because he discovered that the communist press, even in the UK, was controlled out of Moscow.