I get that but you can kind of go off a summary of their ideas. In Marx case you have stuff like (from Wikipedia):
>For Marx, class antagonisms under capitalism—owing in part to its instability and crisis-prone nature—would eventuate the working class's development of class consciousness, leading to their conquest of political power and eventually the establishment of a classless, communist society constituted by a free association of producers. Marx actively pressed for its implementation, arguing that the working class should carry out organised proletarian revolutionary action to topple capitalism and bring about socio-economic emancipation.
My problem with him is more those kind of ideas and the problems they have brought rather than him being a shithead or similar. I think you can probably have a more meaningful discussion of ideas that can be briefly stated so everyone knows what is being discussed than referencing 1500 page works where that is not so.
Even in a short paragraph like that you can see quite a lot of ideas, some of which have worked and some not. Like in the UK the 'working class' Labour party have just gained power so that bit's ok, but not much destroying capitalism going on because their voters don't want that. It's the revolution to topple capitalism and bring communism idea that hasn't tended to go very well.