I'm having trouble interpreting this in any way other than a claim that granting users control over their devices is a fundamentally broken idea. I won't dispute that users often choose to do dumb things in practice, but it seems the two of us have a fundamental disagreement in our underlying worldviews.
> Even technically competent users ... no matter what you actually write
I'd argue that such users aren't actually technically competent then, despite the high opinion they might have of themselves. On the other hand, perhaps the users are technically competent and it's actually the relevant software developers that have done a poor job of communicating? If an actual technically competent user is experiencing significant difficulties using a program, then perhaps the program doesn't work as well as the developers thought it did.
In many situations we may not have better solutions, but that doesn‘t change the fact that this is terrible.