I think capitalism can be understood as a living entity, a being composed of billions of smaller beings (people), essentially cells. It evolves (legally and through market innovations), has an immune response (police), and grows and reproduces itself (imperialism). The cells are independent life in their own right, but they exist almost wholely within the body of capitalism and the structure of their existence reinforces their participation in the greater whole of capitalism. All complex organisms are composites of smaller organisms and I think it makes sense to reason about capitalism and how to go about changing it or destroying it from this lens.
Writer Charles Stross once commented that if aliens visited the US, they would see a country that had been conquered by corporations and was now living as an occupied territory with a traitor government (boardroom execs) and enforcers (police).