There is a solution to the insanity of postmodernism. Expose how oppression is condoned by pomo because it can't as a philosophy have any opinion one way or the other. "Liuberal" relativists will more likely embrace modernism once more when they realize their own goals are thwarted by apathy. How can postmodernists define oppression if everyone is entitled to a different definition of what makes oppression what it is.
Also eventually the anxiety and despair of not being able to rely on their own abiities will catch up with them, especially if they are thrust into a situation where the MUST ise their brains to "construct" real SOLUTIONS. People can only be apathetic for as long as they are not affected by real problems. To the extent they are illusion will not suffice in the long run. Reason logic and real hope will prevail if pople come to see these as necessary for theor own happiness.