The thing is, people have a hard time imagining or working with large numbers. The Galactic Republic was big. It was really, really big. A million worlds according to Lucas's early writing. But some authors insist on writing about it as if it's the size of something more familiar, like the US ... which is only 5% of one world. That skews the population numbers by what, a factor of twenty million?
This is kind of off-topic but ... this is the type of blatant and patently foolish error that the mods of another board will defend in order to flatter a "VIP." Who subsequently posts homicidal fantasies. I don't know why anyone would put up with that site. Seriously, is it the rotating banners? The domain name? What?