Cladistics and Linnean systematics are two sides of the same coin – a single true classification. The former is thus a paradoxical contradiction, whereas the latter is a total consistency. The part that is missing is thus “single” – on one side it is paradoxically contradictory and on the other it is several. The coin is thus not single.
It means that the closest we can come to ” a single true classification” is Linnean systematics, because it is at least consistent. Cladistics is in practice an indefinite continuation in a vain search to “define the indefinable” (as Charles Darwin expressed it).
It means that biological systematics can’t be both consistent and unambiguous, unfortunately.