One of the strangest and most alarming things I saw was someone did make a kind of Robo-Slut, but it was really more like an advanced fleshlight. The creators of the device said they put out several, uh, into the consumer space, for testing purposes to see how the device would fare.

Each device came back nearly destroyed.

Now, to be clear, this was effectively a large robotic fleshlight. Most of it was made of steel and electronics, only with a soft outer skin for, uh, use.

However, in no more than 2 weeks, most of the devices were nearly physically destroyed and no longer able to operate normally. Some were almost torn to pieces. This came back as a surprise to the engineers in that it was clear the devices needed to withstand far more abuse than they expected, but some did chime up with a legit question of: "Exactly how violent is a human male capable of being during intercourse?" Which lead to other questions around, "How violent is sex among the general population?", "How much danger are women actually in during intercourse?", "Is this what it looks like if men treat women as objects?"

From a dispassionate psychological perspective, I actually think a better question is "How much are men tempering themselves with women?" because it seems like their behavior can go to extremes when they are interacting with something that is an inanimate object. It's very obvious that most men always temper themselves, or hold themselves back, around women for status, for the safety of those women, for many reasons that indicate a fundamental psychological difference between the sexes. But when it's not women, and they're not holding themselves back, their behavior seems to be much more extreme. Women seem to be a moderator of men's behavior in almost all forms.

I guess, to your point about "increasing violence against women", I think that would definitely be a line of argumentation if this evidence continued to emerge with an actual Sex Bot; but it would be a wrong headed belief. Yes, if men see something as an object they will treat it worse than a woman; but in the opposite direction, men will personify objects as feminine and treat them much better.