I don't know which blinkered view of sales figures you are looking at (although from your phrasing I guess it's US only figures), but you might like to look at these.
Sorry they are Q3 2011, but I think they prove the point.
Worldwide smartphone sales to end users Q3 2011
So getting ATF to kick out the Blackberry in their favour isn't really the fight they need to be fighting if they intend on domination.
Sure, Apple aren't hurting as long as people continue to feed their huge profit margins, but unless they are willing to remain a niche product, they will have to do something. Yes, I know, just like the Mac, but I know plenty of ex Mac users who have deserted to PC, usually because of software availability.
You only have to look at what happened to Nokia to see how quickly things can change in the mobile world.
As far as I'm concerned I'd rather have to many choices than none at all, and long may that continue.