Opinion: Obamacare made big health insurers very rich, what could Medicare for All do to them?

Obamacare could eventually be replaced by Medicare for All, and that’s bad news for big health insurers, the biggest beneficiaries of the program. Medicare for All, a healthcare system operated by the government, has been gaining traction recently on both ends of the political spectrum. And that raises the prospect that such a system will become a reality one day.