Those people simply cannot be helped. At the end of the day, you can't stop people from hurting themselves by being too credulous, not without taking away their freedom. Those are the choices: either you accept that some people are foolish and will make bad decisions, or you circumscribe their ability to make decisions. There's no third option, because any halfway measures you take (like what Apple has done with these full disk access permissions) will be mindlessly ignored by someone who is too lazy or foolish to actually think about what they are doing.