Until the rise of postmodernity in the early 1970s, most women viewed themselves as not at all "very like men in their shared humanness", but rather as definitely existing in a separate and in many ways superior sphere.
Blacks, the handicapped and bacteria - on and on and on - also existed in some of Modernity's many 'separate' spheres --- but these spheres were usually viewed as more clearly inferior.
Martin Henry Dawson, post his discovery of bacteria DNA HGT, didn't necessarily see bacteria as being that however ...