You are right, cannot generalize. But as it's not a common subject in NL (we usually hear about things that actually happened like the Judo thing); I would find it horrible to have to be careful with everything I do because people might feel 'uncomfortable' (like you I do not like this word; I think uncomfortable is an indigestion type of thing). But this is not at all to belittle people who are generally threatened as yes, that happens, but 'we' (in NL) (and in UK I see it as well) do not have that feeling generally and that's better than this 'let's not go for a drink because I might end up fired'. It widens the gender gap considerably as well as you cannot treat others like equals. You would have that drink with a male colleague, alone etc.

I went (as a white guy) to a mostly muslim highschool in Utrecht (Kanaleneiland in the 80s) and besides guns, knives and streets fights, this feeling wasn't there either. But real (in the much more than uncomfortable range) things ofcourse happened, it just didn't leave this kind paranoia behind. If paranoia at all.