Abstract Who are the peasants/Indigenous people and what is their role in the history and future of Mexico? Questioning the dominant version of the socio-political dynamics, I start with corn, a grain created in Mesoamerica, to develop one of most admired agroecological systems in the world. It contributes to good nutrition and health, (re)shaping social structures and the territory itself. Today’s communities, transformed into a Communitarian Revolutionary Subject provide a model for post-capitalist societies. I apply the framework of Radical Ecological Economics to illustrate and accompany this dynamic.