Not every country in South-America is „ready“ for Eco-village-culture.
Some are still waiting for collapse of capitalism (Paraguay and Bolivia e.g.) and in some countries capitalism already has collapsed (Argentina was bankrupt and is again) probably Chile.
Also corrupt governments are getting US-dollars from Cargill and Monsanto in order to drive campesinos (smal but organic farmers) off their land to plant genetically modified soy.
That is why you will not find a lot of Ecovillages in Paraguay and Bolivia.