I think you don’t get the point. It‘s about that if we are only trying to optimize for outcome, we will loose what makes it more than just biological. I don’t see how it makes sense that a women using a dildo is in any way similar to a human to human interaction, it’s more than just getting off right?
Is your suggestion to ban future sex robots in order to make sure that human-to-human connection is more robust? (I don't know the right answer, just that intuitively it seems not right to do it, even if the outcome of very good sex robots means less couples / less children / etc.).