>Yes, but Marx believed in false consciousness. He thought you could
>tell objectively which aspects of a subject are the product of power
>and which are genuine expressions of species-being or whatever.
You are not only conflating the early Marx, which made this expression explicitly, with the later Marx, where it largely disappeared, but assuming that Gattungswesen means a timeless, unchanging essence. It doesn't; it's always historical. It would be impossible to think of communism with a static idea of species being.
>Power is bad.
Foucault says exaclty the opposite. Power isn't, or isn't just, repressive. It's positive also.