You make some very good points here. Hillary would make a horrible president, no doubt about it. And she’d definitely be tougher for McCain to beat than Obama.
The thing is I, for one, still don’t see her getting the nomination this year. I’m guessing that Rush doesn’t either, at least not at this point. Of course, if her campaign picks up enough momentum, and it starts to look like she’s got a chance to win the nomination, then I expect Rush to switch sides and start backing Obama.
We’ll see.
Here's the thing: with every election she wins at this point, it's a chance to claim the momentum and pick up the superdelegates.
If this was really about "chaos", Rush would end it now (she isn't going anywhere) or even be suggesting a trade off every other primary: Hillary in PA, Obama in the next one, then Hillary, then Obama.
By consistently throwing support to Hillary, the superdelegates and the press see momentum that legitimizes her with the party and, to a lesser extent, the public.