I’ve met a lot of people that really like ketchup. They like it so much that they always talk about tomatoes and agriculture like they’re experts. It’s really annoying. That’s why I hate ketchup. Oh yeah, and I don’t think it tastes so hot either!

You are allowed to hold whatever opinions you want for whatever reasons you want regardless of whether those reasons are logical or not. However, I don’t think it’s right to condemn people for pursuing their interests and doing what brings them pleasure when it has no effect on you. If a grown man wants to slap on a mini skirt and skip around like a teenage girl, that’s his business. If you don’t like it, don’t watch. I don’t see how any of the things in your post could affect you unless you choose to let them.
As far as “Japan [getting] dragged through the muddy water,” anime is a big industry that draws a lot of money into the Japanese economy directly through media and merchandise sales and indirectly though widening awareness of Japan and bolstering tourism. Perhaps it does not reflect what you consider to be “true” Japanese culture because it doesn’t involve painted wall scrolls and throwing beans under your house, but it is a part of Japanese culture nonetheless just like, for better or worse, hamburgers, guns, and racism are part of the culture of the United States. Maybe you like it, maybe you don’t; but I don’t think you have a leg to stand on saying that your interests are more justified or more noble or more whatever you think they are than anybody else’s.

I don’t have anything wrong with anime. I actually thoroughly enjoy some of them, like Samurai Champloo and Cowboy Bebop. One thing that really got on my nerves one time, though, was when three people walked into my sensei’s dojo reading manga and speaking random japanese words mixed in with their english. They showed up, paid for a month’s worth of Karate, and then quit within two weeks.

What was the point of THAT?? Not that I have anything against Anime or Manga or anything, but if that was the ONLY reason they joined karate, then they have something mixed up.

…I think…that any Japanese would work in that situation.