> When the consciousness itself not understood and well defined in the first place, it is pretty pointless to debate if something is or isn't conscious.

I don't think that this actually follows. Compare: "When Angels are not well defined in the first place, it is pretty pointless to debate if a pebble is or isn't an Angel"

i.e. even if X is poorly defined, you can still often say that Y isn't plausibly X.