That's not the issue here. As jacquesm points out in another comment: the issue here is that these are quasiparticles, which are fundamentally different from '

That's not the issue here. As jacquesm points out in another comment: the issue here is that these are quasiparticles, which are fundamentally different from 'real' particles like electrons or photons. Whether or not the latter 'actually exist' is irrelevant for that distinction. A quasiparticle is nothing more than the name given to an emergent phenomenon. Only in a system like a nanowire can spinons and holons emerge. Only in such a system can you make it seem as if an electron has been split. An isolated electron still cannot be split in a spin carrying part and a charge carrying part.