Since Harlequin in 2012 gets around 13% of its revenues from ebooks, you might want to moderate those sweeping claims.
That would detract from the narrative, which is that publishers are EVUUUUL and that writers must flee the publisher's plantations for the "freedom" of self -pubbing.
In reality, of course, many romance writers would like to write for Harlequin so as to take advantage of its wonderful brand and guaranteed payment. They would prefer not to be stuck out in the wilderness of Smashwords, toiling in obscurity beside 100,000 amateurs.
It's one of the reasons why aspiring writers would agree to "unfair" contact terms with Harlequin. The self pub alternative is often worse.