That's what Marxists don't understand: it could work somewhat in an extremely high-trust society. The reason it doesn't work is we're not in a high-trust society. No sooner than you start to create the tools of Marxism are they taken over by the very people who you thought were the reason capitalism was bad. Of course they'll use your newspeak and say what you want to hear, but it will be the same old funneling your money to themselves, only with more backing from the government to force you into giving them even more.