Terry Eagleton filets FIU's own Stanley Fish:"It is one of the minor symptoms of the mental decline of the United States that Stanley Fish is thought to be on the Left. By some of his compatriots, anyway, and no doubt by himself. In a nation so politically addled that ‘liberal’ can mean ‘state interventionist’ and ‘libertarianism’ letting the poor die on the streets, this is perhaps not wholly unpredictable.
"Stanley Fish, lawyer and literary critic, is in truth about as left-wing as Donald Trump. Indeed, he is the Donald Trump of American academia, a brash, noisy entrepreneur of the intellect who pushes his ideas in the conceptual marketplace with all the fervour with which others peddle second-hand Hoovers. Unlike today’s corporate executive, however, who has scrupulously acquired the rhetoric of consensus and multiculturalism, Fish is an old-style, free-booting captain of industry who has no intention of clasping both of your hands earnestly in his and asking whether you feel comfortable with being fired. He fancies himself as an intellectual boot-boy, the scourge of wimpish pluralists and Nancy-boy liberals, and that ominous bulge in his jacket is not to be mistaken for a volume of Milton."
"To refer to Fish the Dean, however, is to reveal the fact that there are two Fishes, Little and Big. Little Fish is a sabre-rattling polemicist given to scandalously provocative pronouncements: truth is rhetoric, free speech is an illusion, unprincipled behaviour is best. Big Fish is the respectable academic who will instantly undercut the force of these utterances by insisting that they are descriptive rather than normative."
He now seems to have written the same book several times over – after you have stated that everything comes down to cultural beliefs, it is hard to know what to do next but to say it again, this time with a few different examples.