Is Using Sex Robots Halal?
A sex robot can’t replace a human, no matter how advanced the AI is nor can it produce children that many people do desire. And with the issue of overpopulation, I don’t think expecting humanity to be destroyed just like that is a possibility. Marriage institute will endure. Sex robots are more equal to sex toys. Which aren’t haram. However I think the real issue with sex robots is that it may potentially normalize problematic fetishes like rape and encourage dehumanization, even among normal people just like pornagraphy does.
To reproduce offspring is an innate desire of human beings, and this desire is not something that can be served by sex robots in the conceivable future. If and when such becomes a reality, the jurists of that time will decide after considering all nuances of those times. Until then we should refrain from speculating. Islam deals with moral aspects of our innate sexual desires. Since morality is only a concern in our dealings with others, and since sex robots cannot be considered as sentient beings at this time, their use cannot be considered as haram from the Sharia perspective.