I don't really think it's fair to say something like this about an entire medium...
But... Japan... Well, again, generalisations don't really do well...
I will however note something I found fascinating... Could be a one-off thing, not representative of anything, but it does potentially hint at something...
We have a TV channel in my country that largely shows foreign content.
It shows things from dozens of countries, and a wide variety of things, but one thing in particular you see regularly;
News broadcasts from around the world. There are dozens of them.
English, Dutch, German, Italian, Portuguese, Russian... Indonesian. Chinese... Etc. Arabic...
While most of these are in their native language (Some are not, such as the Russian broadcast), and all have specific political biases, (Which can be interesting, when you compare, say, the broadcasts of German news vs Russian news...), but regardless of these biases, most of them contain a decent mix of foreign and local news. (Local to the country of origin, I mean).
But... The, Japanese news broadcast really stands out here.
I can't understand most of what they're saying. It's in Japanese, and these news broadcasts aren't subtitled.
(Specifically, what we get shown here is NHK tokyo's news broadcasts)
But, unlike the news of pretty much any other country, there is NO foreign news. AT ALL.
None. It's all local stuff. (And often mostly about the weather).
I thought at first it might've been a fluke, but after watching several broadcasts, it was clearly something that was going on all the time...
Contrast this with just about any of the other several dozen news broadcasts from around the world, and this really stands out...
It could of course, be a fluke, and just be down to this one channel whose broadcasts they happen to show, and perhaps they're only showing part of the broadcast... (Or foreign news is somehow a separate show from what they're broadcasting here.)...
But... If this is actually the entirety of a Japanese news broadcast, and representative of news broadcasts in Japan generally (And not just the NHK specifically), then that has some... Interesting implications.
To ignore foreign news altogether is very strange. Even china doesn't do that...
Yet, if they truly don't show anything, what does that say about Japan?
Are they truly so insular they don't even have a passing interest in what's happening outside their own country? That seems highly unlikely... Yet that's what this news broadcast hints at...
Very odd...