The suspicion is that not every single case has been investigated to determine whether the fear described is really vague or perhaps even justified. It is often difficult to say. Someone demonstrates against migration because they are afraid of losing their job: vague or justified? – It depends on what the man does for a living. Someone complains about refugees because they believe that a parallel society is gradually taking hold: vague or justified? – Nobody can say that with any certainty today.
Fears almost always concern the future, and that is switzerland rcs data difficult to predict. No one would say that it is a vague fear that drives us to buckle up in the car. But statistically speaking, the risk of an accident is extremely small.
By using the term "diffuse," journalists position themselves politically. has no real basis, that it arises from paranoia to some extent. The message is usually quite clear, especially in context: people with such fears do not have to be taken seriously, and the problem is actually just that they don't know enough and fall for populists.
But perhaps certain fears are simply not understandable from the editorial ivory tower. And journalists may only have a blurred perception of the daily reality of the general population. A diffuse perception.