We do have Harlowe's monkey studies that do indicate that even imitation is better than nothing.
My guess is that this plays along oxytocin receptors, which is also why things like weighted blankets do kind of work, social media does kinda work, etc. People can also take inhalable oxytocin.
There is no replacement for unconditional love (which means love that respects boundaries unconditionally as extensions of a person and their autonomy) and community though. But that doesn't mean women should endanger themselves so dangerous men who enjoy being controlling (like Musk) can have oxytocin. Because then that means women don't get unconditional love and respect for their boundaries and safety.
I am agreeable to these robots but I also have some reservations as a sex worker. First, there is a substantial male population who cannot hire sex workers because they have been blacklisted for various reasons. These men could benefit from a doll for sure. Second, similar to AI deepfake concerns - some of these men are basing dolls off real people, and some are pedophiles- what stops them from ordering a doll that looks just like the little girl next door? And what stops them from filming material harming and torturing these dolls and selling it online? Including material that could involve animals, feces, or other taboo/illegal/defamatory acts? That's likely currently legal depending on the doll's appearance (how young it appears) and local laws. Yes, it's just a doll, so that's better than the huge curremt online presence of monkey torture and real human torture. But don't you think that's also bad in some way too? On one hand, it's comparatively a good outlet. On the other hand, holy fuck