That questions too, can be successfully negotiated, without an either/or situation of all machines or all men. Cyborgs are the creatures of the future, they will really have no burning need to have an internal cogito into their own constitution, as much as now , we are ‘educated’ to disbelieve in the importance of subjective knowledge.
An example is the differential self approbation between seeing ourselves as a product consisting of tubes, organ systems, circulation flows, oxidation processes, etc, versus psychological reactions of sensing all this machinery within, and thereby for the most part ignoring it, (except doctors, perhaps).
Such cyborgs, being of complex duplicities , will as technology improves abilities to gloss over differences between the technical, psychological, and behavioral models within which they can function, will have no incentive to go backward to differentiate, but only to progressively incorporate and integrate the remaining differences.
I think this discrepancy is but a phase, or stage in this development.
The question posed is an interesting one, of whether the human being already having these traits, that perhaps we are already cyborgs in this respect, perhaps suggests the primordial seed of this evolutionary goal, since artificial intelligence, has so far, not successfully demonstrated a total fusion of cognitive function, system, prediction-predictability through auto-feedback and memory.
When and if that critical stage can be attained and surpassed, the question of whether machines will take over or not, will become mute as a historical relic, however the psycho-philosophical notion will de-emphasize to point to the technical process as a basis of a societal acceptance/understanding. When this point may be reached is a good question, but i would think a minimum of a few more generations would be sufficient, to advance the revision to recent memory (since the beyond history concept will effect this shift, enhancing the relative frames of reference within the changing matrixes mentioned)
All kinds of differing man/machine combinations will de-emphasize the differences, and the simulated machine-sex object robotics, (James brought this into the discussion), with varying proportions or real/manufactured components- will be primary to overcome initial resistance, by depreciating societies’ discontents over obvious natural, versus virtual evolutionary differences.
If, and this is a very big if, this stage is reached in the first place.