The re-valorization of prejudice has been conducted in our time by Hans George Gadamer in his Truth and Method. Mr RK should be familiar since the opening topic is truth in the work of art. Prejudice as a concept is historically developed from Medieval jurisprudenceas a name for an interim judgement necessary for subsequent inquiry.
In this sense Gadamer discloses the historical character of culture to be prejudicial; to make implicit assumptions as a basis for further understanding. A scientific prejudice against the past, (history is bunk) when carried into the humanities makes for alienation; past = prejudice = error. The ‘revolutionary’ spirit of liberalism (PC) overvalues regicide and novelty, and undervalues or is blind to, the principled partiality of churches, schools and states. A conservatism that recognizes the importance of what doesn’t change (vs noisy fashion), that sees tradition as a benefactor and ground for our present stance, not just an object of rational critique, is a more honest (historically) intellectual stance and yields greater wisdom in government. I think it is also better equipped to discern real science from jargonized political advocacy.