I don't know about you, but I would rather not base civil law around whether someone's consciousness is different to the person next to them, whether they have a soul, or whether this is all restricted by my imagination, their imagination or the imagination of the bloke down the road.
I also don't have the infinite amount of time to try and categorise people on that basis, in terms of the law.
And, there is the small matter of the fact that it's pointless, irrelevant, and of benefit to no one. Or possibly someone, or maybe three or four people or a million people, but you won't know, because you don't know how to categorise them.
You, on the other hand, are more than welcome to have a stab at it.