I think they screwed up one very important point:

This is ridiculous. If the insurance companies profited less to insure more people, then they would profit more to insure fewer people, and the best profit-making decision for an insurance company would be to shut down.

I'm not saying that premiums won't go up, but it's not an inextricable law that more people means higher premiums. Assuming that the currently uninsured populace is significantly worse-risk than people under existing group coverage, then it follows, but no one's shown that. And I wouldn't be surprised if that were the case (after all, they've had almost no medical attention), but I don't think you can make that assumption without at least stating it, and preferably offering some real evidence.

It also fails to note the long-term cost (that the taxpayer currently pays) of failing to provide preventative care.