I am reminded of the “brick in the face” argument against solopsism. Tell me whack more about your whack frame of reference... I see postmodernism and extreme

I am reminded of the “brick in the face” argument against solopsism. Tell me whack more about your whack frame of reference... I see postmodernism and extreme relativism as a sort of awesome stage of society where we get to make up reality because we are freed from mundane concerns like knowing where our water comes from or where our sh%t gets flushed to. It is quite wonderful that many many people get the luxury of never even being curious about these things. Meanwhile, the engineers, doctors, carers, labourers (I am missing a lot out here) who ultimately keep people alive tend to have quite definite opinions about critical aspects of reality. Granted these are still not objective truths because all experience is subjective. All I can say is that a sophist who believes that rent is not an objective truth is nonetheless likely to find themselves (subjectively) on the streets if they don’t pay it.