That's technically wrong. Every language has morphemes for the simple reason that every word is at least one morpheme. `cat` is a morpheme. `cats` is two morphemes (cat-s).
(The point about semantics is also technically wrong. You would first need to specify your view of semantic compositionality before such a point can be evaluated, but the usual views of semantics don't have any such consequence.)
(The point about semantics is also technically wrong. You would first need to specify your view of semantic compositionality before such a point can be evaluated, but the usual views of semantics don't have any such consequence.)