Also I don’t know how are festivals in the US, but I’ve never seen armed cops at one, and would be really uncomfortable if there would be some.
I agree. But most people who have been claiming that "CHAZ is being ruled by warlords" (or some similar permutation) are the same people who were totally fine with armed anti–lockdown protests at government buildings a month or so ago. They're the same people who have sided with the police as they attack peaceful protestors in the name of "law and order".
My presumption was that the OP basically shares these views. So I'm simply trying to understand why this one guise of "person with a weapon" is especially scary but others are not.
Contrast this to armed anarchists, anti-fascists, whatever, occupying city blocks as part of an organization that's connected to street violence and looting. The CHAZ guard, hasn't been trained and vetted and you don't know what his goals are and you haven't experienced it before.
As others have noted, it's a bit of a false premise to ask "Why are we scared of these people but not those other recent protests?" Because, of course, you assume people weren't scared by the other protests, which is not necessarily the case. Imagine someone who worked in one of the government buildings that the end-lockdown people occupied, there are now a hundred guys with masks and rifles occupying the building - is that imaginary worker scared or disturbed, and can you see why "But you aren't scared of the armed courthouse guards" isn't exactly equivalent?
EDIT: Sorry. I should have stated that this is for liability issues more than any other reason, not out of any "goodness of the heart". Though, given the opportunity, most people will do the good thing rather than the out right psychotic thing, clinical testing has shown.
I didn't see where this person up thread was fine with the anti-lockdown armed protesters or claimed to side with the police attacking peaceful protesters. Can't those things be wrong and having local warlords in charge also be wrong?
Your experience of music festivals and heavily armed people going hand in hand is not universal.