On phylogenetic approaches

Biological evolutionary science (i.e., phylogenetics) has the possibility to choose between two different systems to organize the history of the biological diversity (in the context of Darwin’s theory on the origin of species):

1. The Linnean system, which is an object-oriented approach describing evolution in terms of classes.

2. Cladistics, which is a class-oriented approach describing evolution in terms of objects.

The reason that the science offers these two, opposite, kinds of systems is that every possible kind of evolutionary entity is ambiguous with regard to both number and class, that is, doubly ambiguous, per definition, and thus that such entities also are ambiguous with regard to both boundaries and history per definition. This fact also means that there are several different but equally correct ways to describe the true history of the biological diversity with each of these systems. 

Adherents of cladistics have, however, a tendency to claim that there is a single correct cladistic description of the true history to be found, thus either not understanding facts or simply denying them (not clear which). Coupled to this claim are also irrational reasonings confusing object and class. This approach can be understood as a fundamentalistic, or subjective, variety of phylogenetics.