From a religious perspective, Catholicism would see it as a sin because the purpose of sex for them is procreation. Well, if the robot has an artificial uterus with eggs from donors and procreation is possible would having sex with a robot be a sin even if procreation is a goal? It would be seen as sin if the robot has no will and therefore cannot consent or refuse. Sex with a robot could be accepted by the Church only for medical reasons that prevent normal conception through human partner. If a robot has will, then it poses another dilemma for all religions that believe in souls and spirits. Does a conscientiousness machine have a soul or spirit?

I am uncertain about how Islam would see this. A Fatwa from a an Islamic Scholar who knows the Holy Qu’ran and the Hadith woulds be needed

Same for Judaism, The religious authorities would need to review this issue. Same for all other religions

Can you prove that at least one adult person can?

(2) “Unlike gut reactions or religious dogma, ethics demands we explain why something is wrong.”

Oh, yes? Can you really explain why anything–pick the easiest thing you can imagine: perhaps murder, or rape–is wrong?

(3) Let’s assume you can explain why we should care if a human consents, or even an animal. Why, apart from your declaration, should we care whether a robot consents?

Not impossible, but about a likely as having people who are primarily attracted to praying mantids, or starfish, or corn stalks, etc.

and psul: use a condom=problem solved

Second- anyone who cannot see the wrong in forcing sexual intercourse with any animal anywhere as perverse and unethical also needs to not be producing and trying to rear human young. We will be judged in the end by how we treat those lesser than ourselves- and sex between species is NOT part of the evolutionary plan. Jack off all you want to what’s in your head; learn that acting on it in real life has consequences your day drams have not considered.