Since you recommend it so highly, I will give it another try. I just found it nauseating because we hear the same things coming out of the mouths of modern liberals every day.
Just to be clear, it is NOT great literature by any standard. Pretty dull, actually.
What makes it a great read is how seriously it takes itself, and seeing how completely history has proven its ideas to be utter rubbish. Yet it still remains the core of the Progressive vision, even today, though most Progressives are not aware of that fact.