^So your writing a book as a new author that directly contradicts a well known trilogy in the Star Trek setting? And hoping to get published? Good luck with that!
Artistic Discretion... Sure, everyone likes it when theres a running "Continunity" in the Trek Books, but seriously some authors, such as Peter David (don't get me started) have come up with several questionable ideas that have ruined the "Trek Literature Universe" for other Authors who have stayed with the "Continunity" out of respect...
When it comes to Literature, I think its up to the Author to create the setting and events, regardless of previous Authors "Continunity", look at the Marvel and DC comics, throughout the years theres been hundreds of different variations of "Continunity" and it allows the reader to choose their respective series, based on personal taste...anyway, getting back the Borg Origins...
I understand a lot of the Mystery surrounding the Borg is what captivates the audience to this particular element of "Trek", however I think its still fair for us to speculate, come up with theories, as i've said, what many people regard as the best explanation for the Borg (The Caeliar, "Destiny" Trilogy), to me is awful...