So the only reason you consider robots to not be worthy of moral consideration is that they have only "artificial" experience? What makes you think that that experience is not as real as that which comes from naturally occurring entities? And could it not be argued that humans also have artificial experience as well? Babies don't just drop from the sky - they require other humans to create them!
I guess I just don't buy into the whole "nature is good, humans are bad" thing quite completely enough to go for that argument
