Many influential philosophers and social theorists (e.g., Derrida, Foucault, Lyotard) have been willing to bite the bullet here, albeit with enough obfuscation to provide plausible deniability whenever this implication of their views is pointed out. Nevertheless, it’s not a very attractive bullet to bite. For one thing, relativism seems to be clearly wrong. For another, it seems to be self-undermining. (Is the perspective that all perspectives are equally accurate itself just one perspective among others? Etc.). But even worse, wouldn’t relativism imply that a centrist, liberal, or even right-wing political perspective on society is not objectively worse than a left-wing one? For most proponents of the sophisticated view, it is this implication that would be truly intolerable.