“But all rabbits are going to know where other rabbits are ...”
That of course is an assumption which destroys your argument, sadly.
Time, distance, the shock of never returning home, normal forgetfulness, calamity - all those and more mitigate against the rabbits knowing where all the other rabbits are.
On that note, there is some biological evidence that we may be someone’s scattered rabbit ... (why do we need such big eyes? Among other unanswered biological questions.)
I think it’s more likely that once we get the interstellar capabilities we don’t lose the knowledge of where Sol is, and yes that’s just as much an assumption as the inevitable losing of that that knowledge. How can any argument be destroyed when it has never happened yet as far as we know? I mean if there are hunters out there seems like they would make sure that any colony they find isn’t the only colony of that civilization, why wouldn’t they given they are hunters?
Freegards