The problem with the postmodern idea that "truth is subjective" is the way most of its adherents (the louder ones, anyway) seem to think that means reality -- objective reality, where atoms are combined to form certain shapes and therefore are not combined to form certain other shapes -- is therefore as fungible as their own mushy thought processes. Wiser minds know that facts are facts, even if imperfect humans cannot perceive them with 100-percent accuracy and therefore misinterpret or deny them. That's why the goal should be to get as close to the truth as possible, not to just throw up one's hands and claim that there mustn't be any truth to get close to.