Every major insurance company warns ObamaCare is a total failure and could take the economy down with it.

Another of America’s major insurers is sounding the alarm about ObamaCare, warning the program could soon go bankrupt.

“We continue to have serious concerns about the sustainability of the public exchanges,” says Aetna CEO Mark Bertolini. “We remain concerned about the overall stability of the risk pool.”

Bertolini is referring to the fact the pool of ObamaCare enrollees is comprised of older, sick Americans and may risk the program going into total failure.

ObamaCare enrollees are consuming more services, and paying into the program less, even more than was predicted by critics.

As a result, all but one the state-level ObamaCare exchanges have been shut down after going bankrupt.

Now the federal ObamaCare pool could join them.

Aetna joins other major insurers in warning that ObamaCare is going down in flames.

“United Health has said that it will probably take about $1 billion in losses on ObamaCare plans when 2015 and 2016 results are combined. The company has said that it should have stayed out of the market longer, and that it may quit the program in 2017,” Bloomberg News reports.

Both Aetna and United have been losing money on ObamaCare, and could soon refuse to cover enrollees altogether.

Many insurers, including Aetna, have been losing money on the ObamaCare marketplaces, also known as the exchanges, in part because of a sicker and more costly mix of enrollees, known as the “risk pool,” according to The Hill.

Insurers are seen as having set their premiums too low when the ObamaCare marketplaces began in 2014, and sicker-than-expected enrollees are forcing them to raise premiums in order to compensate.

Even the architect of ObamaCare admits it won’t work.

“We’ve been very clear with the administration about the serious challenges facing consumers and health plans in this exchange market,” said United Chief Executive Marilyn Tavenner last November.

Before taking over United, she was one of the top Obama officials in charge of implanting ObamaCare.

“Most recently, nearly 800,000 Americans have faced coverage disruptions as a result of the significant and unexpected shortfall with the risk corridors program,” Tavenner warned.

Only two things are keeping major insurers in the ObamaCare program.

First, they knew the program was financially unsustainable from the start, and didn’t invest too much of their revenue in it. ObamaCare enrollees make up just a fraction of their policies.

Second, they fear retribution from the White House. Publicly ditching the ObamaCare dumpster fire could draw punishing regulations from the federal government.