She seems to have overlooked the hypothesis that over time people will bond with machines that exhibit even the smallest of human characteristics. That makes a home sex robot no different than a favourite teddy bear, or even a treasured car, in the owner's affections.
There is possibly a difference between street prostitutes with random clients - and what used to be called courtesans with regular clients. The story of Cynthia Payne suggested that she regarded the services she provided as sex therapy for her regular customers - plus a friendly cup of tea and a biscuit.
Simon Raven's series of novels often had plots including that symbiotic theme culled from his hedonistic life.
A social worker acquaintance once said that many families didn't face up to the fact that their grown-up disabled children had sexual needs. In enlightened areas these were provided by sympathetic sex workers.