I’m actually pretty familiar with the topic. There is a wonderful collection of essays some which cover this topic called Dreamland Japan.
A few of the pieces suggest that Japan’s rich fantasy culture provides people with an outlet for behavior that’s otherwise unacceptable is such a staunchly conservative society. I tend to agree.
I’m all for a rich fantasy life, I just happen to think that there is a sex-positive way to pursue it.
Thing about the GG movement is they aren’t simply defending fantasy, they are opposed to gaming content evolving to include a richer variety of narrative and depiction. They are so hell bent on asserting their narrow taste in games that they threaten those with different taste with terrible violence.