Since categories have been invoked, we are discussing semantics.
«As a whole» leaves unclear whether your example means the kind itself, its members generally or every member without exception as they are three distinct interpretations. This is what I have remarked on.
«Cats meow» attributes characteristic behaviour to cats generally.
«Dinosaurs are extinct» attributes a property to a kind, making it a better example supporting kind reference.
The latter also establishes that English bare plurals can denote kinds. Their grammatical form does not guarantee that interpretation: «cats entered the dumpster» concerns individual cats on a particular occasion.
«As a whole» leaves unclear whether your example means the kind itself, its members generally or every member without exception as they are three distinct interpretations. This is what I have remarked on.
«Cats meow» attributes characteristic behaviour to cats generally.
«Dinosaurs are extinct» attributes a property to a kind, making it a better example supporting kind reference.
The latter also establishes that English bare plurals can denote kinds. Their grammatical form does not guarantee that interpretation: «cats entered the dumpster» concerns individual cats on a particular occasion.