"Communism only works on paper!"

Okay, and capitalism doesn't even work on paper. So let's go with the system that's less complicated to shoehorn into working, yes?

(I am aware that communism works (see Yellow Parenti, specifically the "Socialism did work" rant), this is just my go to response to a certain type of liberal, when I think a comparison of systems will achieve better results than "but socialism did work for a shit ton of people in the former Eastern Bloc and is still working for a shit ton of people".)