I'd lthink that a steady flow of crap games comes from any culture, it is a production thing.
Culture
Besides, everyone here who just said how inferior Japanese culture is, tell me, have you ever known a single Japanese person? They are normal and absolutely mentally healthy people. All conclusions that they are sickos come from the perception of "exported" bits of culture. I was exposed to both Western and Eastern cultures, and I can say there are things in both cultures that I don't like (notice I am not saying "I don't like 'em, hence they are crap").
And now somebody complained about pedophilic and other perverted tendencies in some anime. Ask yourself, why does it get translated and exported in such amount to your country?
Innovation
It comes from EVERYWHERE, but not all of it gets press.
Anime
I am not a big fan of anime, but I don't understand anime haters.
I for one hate sport games. I can't play a minute of it, it bores me to tears. However I don't declare it inferior to other games, because there are a lot of people who likes it.
And on topic:
Japanese: 30%
Others: 70%