Capitalism just means economic freedom. Consumers, suppliers, employees, employers, all market participants make our own choices.
Whatever distinguishes capitalism from slavery and feudalism, markets and free enterprise are not it. Capitalism divides humanity into owners and workers.
Just as slavery and feudalism divided humans into masters and slaves, lords and serfs.
While workers have more freedom than slaves and serfs, they are still presented with the "choice" of being exploited by an owner or starving.
There is an alternative.