Of course Obamacare is failing.
Not quite as badly as No-Obamacare was failing, so I'm still glad it exists. It's a necessary stopgap until we find a system that actually works. But you know what? Single-payer healthcare will fail just as badly.
Yes, I know that single-payer healthcare systems succeed in other developed nations. I also know that competitive insurance-based healthcare systems succeed elsewhere. But neither system will succeed in the United States, because the U.S. is the only nation on earth that refuses to keep healthcare spending from spiraling out of control. If the cost remains the same, it doesn't matter who's paying. In the long run, we all are.