[chaseme]

Dramas, live-action movies, variety shows are probably more accurate representations of how Japanese people really speak and include a variety of topics.

and i think some people knows what to absorb and what to ignore.
if they what to know formal japanese they would probably learn from formal anime/jdrama characters and not from characters that is regarded as idiot/stupid characters like naruto

i just made my samples anime since i have seen more animes than jdramas etc...
considering the OP said

I'll put it bluntly, anime, manga, and J-Dramas in the original Japanese language is not meant for outsiders.

i assume you know that i was talking about japanese media in a more broader sense and not only anime when i say

anyway where else can you hear japanese conversation that have a large scope of topics.

The OP's point is that anime,jdrama etc... is harmful for those who are trying to learn japanese language.
that is what i disagree. one because there are different type of learners, people like me with short attention span would probably have more success understanding anime conversation that a voice recording of japanese vocabulary. 2nd anime/drama etc... have a larger scope of conversation than any other source.
well it might be true that it would be hard or impossible to learn "proper" japanese from these media but i think its undoubtedly a helpful media.
i dont think its the anime/jdrama fault that you couldn't stop saying 'sorry' in informal Japanese in a test for Business Level Japanese.