Biological systematics was a mess before Linné, because people didn’t understand the relation between reality and classification.
Linné straightened out this mess with a consistent system of classification.
Linné’s system of classification led Charles Darwin into his idea of evolution (which also the ancient Greeks had encompassed), which he illustrated with a “tree of life”.
Darwin’s “tree of life” led biological systematicists into cladistics, which reentered the mess before Linné, because it doesn’t understand the relation between reality and classification.
So, what is the relation between reality and classification? Well, reality is what we classify, whereas classification is our systematization of reality. If the two could fuse, then reality would be classification. The problem with this hypothetical fusion is that classification is subjective, whereas reality is objective. If they could fuse, then difference would equal similarity, which is impossible.
Fact is thus that biological systematics can only be ambiguous or contradictory. Never will it arrive to a consistent solution. It is actually a chase for the running point. It is thus totally meaningless.
In biological systematics’ search for “the true tree of life”, meaning thus meets meaninglessness. The meaning of it is meaningless.