這一傾向甚至引起了西班牙的CNT-FAI注意。法國無政府主義者丹尼爾·格林（英語：Daniel Guérin）在《無政府主義：從理論到實踐（英語：Anarchism: From Theory to Practice）》一書中提到：「西班牙的無政府工團主義長久以來，一直專注在保護所謂『親善團體（英語：Affinity group）』的自治權。這些群體中有著不少自然主義與素食主義的支持者，尤其是在西班牙南部的窮困農工。在人類社會轉化為無政府社會的階段中，這兩種生活方式皆被認為適合使用在這段時期內。薩拉戈薩的議會成員，並沒有忘記這些『不適合工業化』群體的命運，也就是自然主義者（Naturists）和天然主義者（Nudists）。這些群體並沒有辦法達到自給自足的狀態，因此議會預期他們在公社同盟（Confederation of communes）的代表將會與其他農業和工業公社達成特別經濟協議。在廣大、血腥的社會轉化前夕，CNT並不認為它們會愚蠢到去滿足每個人無窮無盡的抱負[10]。」
賈德·戴蒙在《The Worst Mistake in the History of the Human Race》（人類歷史中最糟糕的錯誤）一文中[15]稱狩獵採集是人類史上最成功、最持久的生活型態，相較之下，農業則被他稱作「慘劇」（mess），且「仍舊不知道我們是否能夠解決它」。依據農業會導致人的預期壽命縮短的相關證據，人類學家馬克·南森·寇恩（英語：Mark Nathan Cohen）呼籲，人們必須改變文明代表增進人類福祉的傳統觀念[16]。
Anarchy is the order of the day among hunter-gatherers. Indeed, critics will ask why a small face-to-face group needs a government anyway. [...] If this is so we can go further and say that since the egalitarian hunting-gathering society is the oldest type of human society and prevailed for the longest period of time – over thousands of decades – then anarchy must be the oldest and one of the most enduring kinds of polity. Ten thousand years ago everyone was an anarchist.
Diez, Xavier Diez. La Insumisión Voluntaria: El Anarquismo Individualista Español Durante La Dictadura Y La Segunda República (1923–1938) [Draft Avoidance: Spanish Individualistic Anarchism During the Dictatorship and the Second Republic (1923–1938)]. （原始內容存檔於2006-05-26） （西班牙語）. Su obra más representativa es Walden, aparecida en 1854, aunque redactada entre 1845 y 1847, cuando Thoreau decide instalarse en el aislamiento de una cabaña en el bosque, y vivir en íntimo contacto con la naturaleza, en una vida de soledad y sobriedad. De esta experiencia, su filosofía trata de transmitirnos la idea que resulta necesario un retorno respetuoso a la naturaleza, y que la felicidad es sobre todo fruto de la riqueza interior y de la armonía de los individuos con el entorno natural. Muchos han visto en Thoreau a uno de los precursores del ecologismo y del anarquismo primitivista representado en la actualidad por John Zerzan. Para George Woodcock(8), esta actitud puede estar también motivada por una cierta idea de resistencia al progreso y de rechazo al materialismo creciente que caracteriza la sociedad norteamericana de mediados de siglo XIX.
Translated: "His most representative work is Walden, published in 1854, although redacted between 1845 and 1847 when Thoreau decided to move to an isolated cabin in the woods and live in intimate contact with nature in a solitary and sober life. His philosophy, from this experience, attempts to transmit the idea that a return to respecting nature is necessary, and that happiness is, above all, a fruit of inner richness and harmony between individuals and the natural environment. Many have seen Thoreau as a precursor to ecologism and anarcho-primitism, actualized by John Zerzan. For Woodcock (8), this attitude can also be motivated by the idea of resistance to progress and the rejection of the increasing materialism that characterized North American society in the mid-19th century."
Freire, João. Anarchisme et naturisme au Portugal, dans les années 1920 [Anarchism and naturism in Portugal in the 1920s]. Les anarchistes du Portugal [The Anarchists of Portugal]. ISBN 2-9516163-1-7（法語）.
Boyden, Stephen Vickers. Biohistory: The interplay between human society and the biosphere, past and present. Man and the Biosphere Series (Pari: UNESCO). 1992, 8 (supplement 173). doi:10.1021/es00028a604.
