Hi!
Bjlong, while I consider myself a fan of manga and anime as well as many other aspects of Japan, most of the things you point out are not true at least for me. It seems that the fandom is more diverse than you make it seem.
Comparing myself to your statements:
1) Holds only slightly true. While I usually don't -san people, I may -chan the characters in my drawings to express care and love for those children. When exclaiming things, I may also use Japanese when it expresses my feelings perfectly. However, I am willing to explain things to those who don't know.
2) Nope. Not with me. While I consider Higurashi no naku koro ni the best anime ever, I generally see more options for artistic expression.
3) Not my kind of game.
4) Also not my kind of game. I may be wrong, but doesn't that also occur in Western comic fandom?
5) Nope. And frankly, you have some weird friends (putting it very politely) if they really feel that way.
6) Absolutely no
In general, these items you list remind me of a certain section of teenager fandom oriented towards the more violent shounen anime/manga. As I hinted at, there is a great diversity in the medium and thus, there is also a diversity in the fandom. I doubt that anyone who is interested in manga where weapons appear only in 0.01% of the cases would have a major sword fetish like that. So, I think you are generalizing a bit too much.
And as to why Japan has been discussed in this thread - at least in my assumptions, holding something in high esteem is the result of some merit. For instance, we have special respect for Toady One for various reasons including the great work he has done on programming Dwarf Fortress, but also for being a very friendly and responsible person, not to mention his generosity in sharing Dwarf Fortress for free with us. If asked why we respect Toady One, would it not be natural to list those traits of Toady One I mentioned above?
Deathworks