The very fact that anime isn't on television as much anymore, speaks volumes that it's not accepted by mainstream America. What you're describing, is the cultural shift of Anime from being something that was once recognized in pop-culture in the early to mid-2000s, to simply a form of entertainment that has now been displaced as a niche hobby on the Internet.
And 4chan is an awful place, by the way.
No, it isn't, and I can give you a few examples of how anime really isn't popular anymore. Toonami on Cartoon Network is practically an afterthought. It's the only anime-lineup on cable TV, but it only airs after midnight on Saturday, when most people are already asleep.
In addition, the closure of Bandai USA didn't make any news, whatsoever. You had to be subscribed to Anime news sites, or anime-based forums to read discussions on it. Also, in retrospect, no one on SSF even knew (or cared) about Bandai's closure in the Anime thread. I posted about it once, and everyone practically ignored it
I've watched anime for a very long time. Gundam (every series ever created), Evangelion, DBZ, Fist of the North Star, Guyver, Inuyasha, Ghost in the Shell (SAC and 2nd GIG), Cowboy Bebop, you name it. But, I have to say, that Crows is absolutely right when he mentioned that anime is reserved for a niche culture. It's not as mainstream as it was back in the early 2000's, when Gundam Wing and DBZ sparked a craze for all-things Japanese. I remember when video stores like Suncoast and FYE had entire walls dedicated to Japanese animation. But, now days, you'd be hard-pressed to even see a small display stand with anime DVDs or Blu-Rays.
Mangas are not popular - I can tell you that. At all of the major comic book stores in NYC like Midtown Comics and Jim Hanley's Universe have their mangas stuffed away in miscellaneous corners of the stores on small book-shelves. They're always discounted for 10 to 15 percent off, but no one ever buys them. It's a shame, because many of the books are so old and discolored from oxidation.
People who are seriously interested in manga, would have to visit the Japanese book stores like Kinokuniya and Book Off, where they have entire floors dedicated to manga, anime, and Japanese movies.
. I certainly can see a lot of younger and lower-income people ditching their Cable and heading to the Internet for their entertainment needs. But, that only accounts for 15% of American households*. It's also a moot point that Cable TV is censored when there are premium services like HBO and Showtime that offer uncut programming. The fact is, that Cable is able to reach a wider audience because most households in America have access to it; where on the other hand, streaming sites like Crunchyroll and Viki are only accessed by those who actually know about them (I love Viki for their Korean dramas, by the way). 
That's not entirely true
As of now, most anime is being handled by the fan-sub community in streaming sites - which further substantiates the point about anime being an entirely niche hobby. So, it's not helping the popularity of Japanese Animation in the least, that the Cable networks aren't interested in it.
In addition, there's also the massive problem about piracy online. Admittedly, I downloaded a plethora of anime back in my high-school years that I could have easily bought at retail. A lot of other Internet people do the same (even to this day), and as a result, the animation studios aren't making a dime in profit from illegal downloads. It's largely the reason for why Bandai USA was shut down, and why we wouldn't see any more cool, English dubs of Gundam, or anime action figures for sale in the U.S. So, you can talk about anime being "popular" all you want, but unless the publishers are making profits from their intellectual work, they couldn't care less about how many kids on 4Chan like their shows. If they're making significant losses, they'll pull out their advertisements and remove their merchandising. So, how exactly is that helping Japanese animation to remain a relevant, and flourishing commodity in the states?
After Bandai's departure, Funimation is practically the only Japanese publisher that's left in the U.S. But, it's probably only a matter of time before they suffer the same fate as Bandai, and pull out of the American market, as well. At least if their animation was being broadcasted on air, they'd be able to recoup some of the losses from piracy.
https://www.huffingtonpost.com/2013/05/24/death-of-cable_n_3328844.html*
That's not entirely true
in fact the "free" streaming sites out number the paid ones by quantities that aren't even funny. The fact that someone made amateur subtitles to an anime isn't stopping it from reaching an enormous amount of people.
No argument there, but it's hardly the point here, nor is the fact that there are no English dubs or action figures sold in the US, that's what I said in the last post, most people who like anime prefer subtitles, as well as buying imported figures.In addition, there's also the massive problem about piracy online. Admittedly, I downloaded a plethora of anime back in my high-school years that I could have easily bought at retail. A lot of other Internet people do the same (even to this day), and as a result, the animation studios aren't making a dime in profit from illegal downloads. It's largely the reason for why Bandai USA was shut down, and why we wouldn't see any more cool, English dubs of Gundam, or anime action figures for sale in the U.S. So, you can talk about anime being "popular" all you want, but unless the publishers are making profits from their intellectual work, they couldn't care less about how many kids on 4Chan like their shows. If they're making significant losses, they'll pull out their advertisements and remove their merchandising. So, how exactly is that helping Japanese animation to remain a relevant, and flourishing commodity in the states?
but that doesn't mean it's not popular, every DC animated movie is greatly received but I bet DC it's not making the money it should with their animated media. 
None of the people I'm speaking of are in high school.but you are a teenager... of course they areeveryone in high school is always obsessed with it, that doesn't change.
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