And that even scientists can't agree on what makes a person
Just not being able to agree on the exact definition of something doesn't mean that things aren't generally classifiable.
e.g. say nobody exactly agrees on what makes a planet. Does that mean that we might as well call your underpants a planet, as much as Venus? No, it does not. Even with a "fuzzy" definition that we can't quite explain in words, we clearly know when something
isn't the thing in question. You don't have to
know anything about how planets work to tell that something
is (or could be) a planet, or
just isn't.
Similarly, while the actual definition of what a person actual is might not be a solved issue, that doesn't mean we can't
classify almost everything in the world into people/not-people categories pretty easily. And a couple of bytes in a computer memory
isn't a person, even if you stick a label in the program that says "this is a person, honestly". The label is a bald-faced lie, honestly.
e.g. you can put a letter "T" in your game and tell people it's a tree. Is it an
actual tree? No, it is not, and not having an in-depth knowledge of detailed tree-anatomy doesn't change that. Similarly putting a bit of arbitrary data in a game and calling it a person doesn't make it a real person, or anything remotely approaching a real person. And not knowing
exactly how real people work doesn't make it any less certain that a scant few bytes of data in a computer's memory is
not a real person.