These sexbot makers might sell more male dolls if their products didn’t look so effeminate. But that would only go a small way towards solving the lack of interest. When the differences between male and female sexuality is understood they might have a chance of shifting a few units.
But in the end all humans, even us straight, white guys, want / need some emotional content in a relationship.

Shakespeare wrote these words to describle the allure of Cleopatra:

“ Age cannot wither her, nor custom stale / Her infinite variety: other women cloy / The appetites they feed: but she makes hungry / Where most she satisfies; for vilest things / Become themselves in her …

They could equally be applied to make lovers. When machines can have those qualities, they will become adequate lovers for real human beings. But don’t hold your breath.
In respect of the sad act males who buy sexbots as substitutes for real girl / boyfriends, rather than jokey staus symbols,I wonder how many of them introduce the new partner to the guys down at the pub?