I think a non-zero amount of people would argue that. I disagree with them, and point to the fact that, say, dogs appear to dream, and in those dreams reflect on past or possibly future behaviour as a sign that they could indeed be conscious in an analogous manner to humans, but that's a bit of a longer bow to draw perhaps.
I think we need to stop treating consciousness as a binary that is either on or off. It's quite clear that consciousness is a scale with many different levels and that even in humans we start out as being no more conscious that any other animal.
LLMs give a hint here too: the last few generations showcased clearly that "cognitive capabilities" of the models grow with latent space size and context window. There is a continuity here.
