At some point, we need to recognize this for what it is - unregulated monopolies having no accountability.
I'm wondering whether there are legal actions that people can take. Many years ago, I was having a problem with Anthem "losing" my insurance claims. Eventually, I got sufficiently frustrated and filed a complaint with the California Attorney General. Shortly after that, I got a long letter of apology, a promise to open an internal investigation, and most importantly, finally got my insurance claims processed.