> 1. Ethical. One thing is that you do a stupid thing and die. Another is that a technology fails in trivial circumstances that in theory are avoidable. A doctor can make also errors, but a medical device is required to be very safe and reliable in what it does.

This needs elaboration or citation. You're one of the only folks I've seen come straight out and make this point: that somehow a technology or practice that is objectively safer can still be "unethically safe" and should be shunned in favor of less safe stuff.

I don't buy it. This isn't individual action here, there's no utilitarian philosophy rejection that's going to help you.

In fact, medical devices seem actually counter to your argument. No one says an automatic defibrillator's decisions as to when to fire are going to be as good as a human doctor, and in fact these things have non-zero (often fatal) false positive rates. But they save lives, so we use them anyway.

Bottom line, that point just doesn't work.