So your wild "Quasi-zombie Proto-synthetic robot Jews from Kepler-452b" who have lost the knowledge of who and what they are would still be a story which would fall for me in the speculative fiction category.
I may have some information which casts some doubt on this.
Yesterday, whilst working out of our London showroom, I met a friend in a local hostelry for lunch. Whilst there, enjoying a pie and a couple of pints of Neck Oil (highly recommended), a Quasi-zombie Proto-synthetic robot sat at the next table. This is admittedly quite an unusual occurrence and as I like to engage with tourists, we got to talking. I asked its name and where it was from and it replied that sadly, it and a couple of friends, it was meeting later, had forgotten, having suffered damage to their memory chips. On a hunch, I picked up my UV light scanner, which is a convenient tool when checking for stolen property and just so happened to be in my coat pocket, and quickly passed it over my new Quasi-zombie Proto-synthetic robot friend.
Luckily it had been security etched and it turned out that it was the property of Armin Cohen, 23 the Sidings, Milletsville, Eastern Frivell, Kepler-452b
I suspect therefore, that any story based around this individual, or his friends, probably no longer falls under the category of speculative fiction.
Sorry for being the party pooper.
Peter