It didn't work anywhere else, either, and it's been tried thousands of times. Note I did not say "Soviet Union".
Do you also refuse to learn basic physics because Isaac Newton was imperfect and despite coming up with some great physical laws, also believed some nonsense about alchemy that later was shown to be nonsense?
Do you bring up the craziness of alchemy every time newtonian mechanics comes up, and refuse to believe in momentum, mass, and kinetic energy?
Having to argue about this crap every time Marx comes up is tiring and intellectually ineffecient.
At this point I wish we could blame just the smart things Marx said on someone else like say, Mark Twain, just so the adults in the room can discuss the workings, benefits, and problems of capitalism without constantly getting interrupted by irrelevant low-effort arguing.
What I want is a good faith argument for something that works as a solution for Marx stated problem. What can we propose? What can we learn?
Don't comment on Marx if all you know is "lol communism didn't work in russia". That's a borderline non sequitur that just reveals you don't know what Marx said at all. It's like British people meeting Mormons and saying "Oh you're a real mormon? What like from South Park?" You don't have to read Marx in the original, just spend half an hour on a Wikipedia or cliffsnotes summary at least beforehand. Maybe do the same for Smith and Ricardo, too, so you can have a good overview.