Since they have no "souls" (that is, a centre of consciousness), they cannot really suffer. They're just meat robots.
That's why it's fine to forcefully have sex with them (it's not rape when they're your own property). It's why it's fine to make them wear robot suits whenever they leave your house to do your shopping for you. They are as disposable as Christmas Puppies. They're just meat.
OK, I'll stop pretending to be a devout Muslim or a particularly devout Christian of Orange County
What I'm getting at is the way that people often come up with convenient ways to justify their treatment of what they find convenient to torture, rape or kill.
Slashdot readers should take more notice of films like Zardoz. "Oh, you can't equate their feelings with ours!"
They are _so_ miffed that marital rape became illegal in all 50 states that they have effectively re-legalised it (and acts of paedophilia, too!) in through marriages of convenience. Seventh degree marriages are fine in Orange County.
Zardoz is ostensibly about a bunch of people trapped in a malaise of artificial immortality, but it's really about cultural elitism. It's much like how Starship Troopers is ostensibly about alien bug-hunting, but is really about fascism.