anchor: Kinsey, like every other social scientist since the Enlightenment, was simply obeying the central tenet of his  that the scientific study of society is possible; that the results of such study are a better basis for policy than, say, the Mosaic interdiction against homosexuality.
positive: Kinsey believed in the superiority of the scientific method applied to all disciplines, society in particular.
negative: Kinsey believed in that the Mosaic interdiction against homosexuals was a good thing.