…early post subsistance economies were also pre-capitalist: in sumeria, grain was accumulated in the priestly storehouses, and measured out to laborers when needed. it is difficult to say why this should not be described as a socialist state. trading and capitalism began to develop at this time, but the percentage of people involved in this sector of society was exceedingly small until only a few centuries ago

in short - no, capitalism is not an inherent state of human society