I've noticed like a bigger % of people on gag are not into anime/manga/jpop or any songs from anime. I don't know I think most people might just think it's a kids thing. Which trust me there are anime/managa that are more like porno's. Then some that are really scary. Just because they are cartoonish doesn't make them just for kids. Still explain your reasons on why you don't like it or if you do.
I am a huge fan of anime and anime has this amazing masterpiece side of it saying examples like ghost in a shell paprika perfect blue princess mononoke akira the girl who leapt through time totoro roujin memories cowboy bebop i could go on forever i can't put in words how amazing and how great these anime's are, even some 1 who doesn't like animation would to watch these he would be hooked. I advice anyone out there to watch some of these to simply see what true anime masterpiece is. And anime has a really shallow and pathetic side where nudity, sex and sick sexual acts are mixed with anime, and really going over the edge and even beyond that, simply sex and fucked up shit will sell and it has it's publicity and that side of the anime is mostly revealed to the random viewer. So most people tend to avoid anime as a whole i guess.
its no problem here in England some folk even go for kpop too anime, manga, and jpop. family guy, south park just to name a few cartoons for adults ok not anime or manga but still cartoons aimed at adults so where is the difference ok style of animation but that's about it besides henti is differently not for kids but cartoon based.
I don't see it looked down upon here, just not popular. Personally I don't like the style of most of it and I don't like the storylines. I love Akira, one of the best films ever, and Ghost in a Shell is good, and I "enjoyed" Barefoot Gen but the general feel of manga and anime just isn't for me. I tried watching some Gibli thing the other day but just couldn't get into it.