Because that's one of the only two conclusions that you can really draw from this bit of earnest fundament-covering by Madam Speaker.
As Allahpundit notes, if the money hemorrhage gets too bad for even Congress to ignore, they can either let the Big Three fail, or take them over - and letting them fail would cost the Democrats a lot of votes. So, we nationalize the Big Three.
If this sort of thing appalls you, may I suggest looking up your local/State GOP office? They'll be happy to help you put that energy to good use.
PS: The other conclusion? That Speaker Pelosi is as dumb as a box of rocks. It's a tempting theory, but I'm not quite buying it. Senate Majority Reid, now...