As this word gets thrown around a whole lot lately here, we should discuss what it is.
Primitivism is the pursuit of ways of life running counter to the development of technology, its alienating antecedents, and the ensemble of changes wrought by both.
Technology is here defined as tool use based upon division of labor...that is, tool manufacture and utilization that has become sufficiently complex to require specialization, implying both a separation and eventual stratification among individuals in the community, along with the rise of toil in the form of specialized, repetitive tasks.
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I have lived in the monster and I know its entrails; my sling is David's. -Jose Marti
...revolutionaries are anti-civilisation because we are opposed to what class society defines as 'civilized' and desireable; because class society and 'civilization' are two-sides of the same coin. Hierarchal organisation, parliaments, commerce, property rights, the police, law and order, fences, borders, religious institutions, these are the things that define 'civilization.' These are the institutions upon which 'civilized society' and class society are based; and all of these will be destroyed when capitalism, the state --- when bourgeois society is pulled down and trampled on by the exploited and oppressed in the struggle for liberation. - bleeding gums malatesta