Any market where choosing not to participate is simply not a viable option should be prohibited from being for-profit.

If all smartphone makers start getting too greedy and charge too much, people will just not upgrade their phones and the smartphone makers will have to lower their prices or justify their higher prices with innovations. People can choose not to participate in the market and pressure the entire industry to lower their prices or create new features to encourage participation.

If insurance starts getting (read: gets even more) greedy, cancelling your insurance isn’t an option, especially if you’re sick. Foregoing insurance means either dying or accumulating extraordinary medical debt you can never repay. There is no pressure on insurance companies to lower their prices because you will always have to pick one of them. As long as they all increase their prices together, they all benefit and their profit keeps going up. Their only “innovations” in the industry are to minimize payments for medical services and maximize how much they shove in their pockets.

For-profit health insurance should be illegal.

The short answer is basically Trump supporters are overrepresented in the watchers. Biden also got numbers in the high 60s.