It is a hard case to make, but if we can't make a compelling case for ourselves should we be requiring it to be made for others.
The context, though, is that Data is both credibly conscious and self aware, and they all know a plausible mechanism for him to have consciousness and self awareness, in a way that's recognizably human in form. The more alien a (supposed) consciousness is, I think the more work you'll have to do in justifying the application of those labels.
I need to write this up properly someday but an ant from my colony that had almost drowned in honey showed some similar characteristics of consciousness...
After giving them a drop of honey, I left for 15 minutes and came back to an ant being stuck and motionless in the drop. I fished it out, rinsed it off in some water and then put it on a tissue to dry. I blew on it for 10 minutes and then saw some motion in the legs... a short moment after, it began wriggling about and then sat on its abdomen like a cushion and sat there for 5 minutes, looking like it was contemplating life and the ordeal it went through.
Once that 5 minutes was up, it returned to being an ant and started looking for its home, I brought it back and it went back into its nest.
I made up for the mistake by bringing the ant back to life and it showed me behaviour I never saw or heard of before (with no supporting mentions anywhere on the net).
(For the record, honey delivery is now more controlled to avoid these sticky situations, I'm not mad enough of a scientist to actually try this again for more results.)
Recently, they've started putting fly wings of the fruit flies that they get fed, on top of their water feeder to get my attention... it's really interesting to see them get creative.
The ant colony is 4.5 years old and numbers in about a dozen of workers at about 2mm in length, they only had 6 workers and a plump golden queen when I found them nested in one of my houseplants!
An LLM —if self-aware— is conscious even if run by a Chinese man in a room with a deck of cards.
Of course, even if we happened to find a modem to the Holy Spirit dimension in our brains as an alternative hypothesis, it wouldn't necessarily rule out emergent consciousness. It could be conscious just not as we are.
I think a weaker version of the philosophical zombie thought experiment would trend towards treating the premise of pan-consciousness as true.
This is a difficult field. Any simple answer you hear will almost certainly be wrong.
I will make a case for both, after you define them in a way that doesn't also exclude many humans (including the neurodivergent or those with amnesia) or turn into self-referential nonsense like "conscious == human, therefore machine !== conscious."
In the meantime, we have a simple choice between two risks: Would you rather accidentally show kindness and empathy to a thing that may or may not have "deserved" it, or risk atrocities that will leave future generations as disgusted by you as we are of the slavers of old.
I will choose to be decent. It's free, and even if the cost were high the cost of evil is higher.