Karl Marx is not only the most influential economist of all time; he is many orders of magnitude more influential than Keynes. Only an American could be clueless enough to think this is up for discussion.

We don’t need this kind of garbage here.

Facts?

They're not wrong though. Marx is so influential even the people who abhor him have adopted his terminology (where do you think the word "capitalism" comes from?). Meanwhile, Keynes' ideas are pretty much forgotten, only coming up in fringe conversations about CBDCs.

Um, no. Keynesian economics is still predominately what is taught as "economics", and is a huge influence on how governments make economic decisions.

It's a bit like Freud - people only remember him for his kookier ideas, but his basic thinking has permeated all of psychology.

Who are 'we'?

I'm not an American. I'm also quite a fan of Marx (or, at least his analysis of the inherent flaws on capitalism). But Keynesian economics essentially runs the world. Marxism... does not.