> "Market forces" is just another way of saying "individual choices"

This is false because my individual choice matters infinitesimally less in the market than the choice of Coca-cola or any other large big corporation. In the other hand, I have a lot more power in the market than a homeless for example. So the right answer is that market forces are "weighted individual choices", and when a few of these individuals have billions in their bank account my individual choice is worth close to zero.