They most certainly are not lol. Unless it is not well-refined, the vapors in paraffin wax contain only nominal amounts of benzene/toluene. You’ll inhale more benzene while pumping gas than you will by inhaling vapor emitted from candles. If you take a bunch of unrefined mineral oil and lather it on your nuts every day for a few years you’ll probably get some scrotal cancer, though (per the IARC monograph)