OK you don't like the first reference but accept that it is used in nail varnish and nail varnish thinners?
If you do a Google search on uses of toluene, it comes up first with:
Toluene has numerous commercial and industrial applications: it is a solvent in paints, lacquers, thinners, glues, correction fluid, and nail polish remover, and is used in the printing and leather tanning processes
also:
Toluene aromatic hydrocarbon solvent is a solvent in paints, lacquers, thinners, glues, correction fluid, carbon nanotubes and nail polish remover
In many commercial products, toluene is used as a solvent that is present in paint thinners, nail polish remover, glues, and correction fluid.
So as I said before, if it wasn't OK from a safety standpoint, it wouldn't have such widespread use.