I had a crippling fear of flying and I still have anxiety about it. One way I got over it was by learning a lot more about aviation. Now I'm really not afraid of anything happening on a plane short of a. catastrophic failure like a wing snapping off or b. uncontrolled fire in the cockpit. Most other things are recoverable, and those problems are very unlikely.

The flaw that caused the fatal 737 MAX crashes was something that that better trained pilots would have been able to overcome. And this would likely be the case for most problems. The recent door plug blowout did not cause a crash, for example.

So I would not be afraid to fly on a 737 MAX from a major US airline over US territory. It wouldn't be my preference but I wouldn't be afraid to.