If you mean the obsession with hyper-sexualizing young girls;
The average Japanese person is embarrassed by it. All that stuff is meant to appeal to the otaku crowd who buy most all of the merch and keep the companies in the black. It's a cliche but the "otaku = sex criminal" is still how they're seen and their shopping habits do nothing to make a lie of that.
It's been hard to get a lot of the hebephilia in the culture killed off because, politically, the nation has been in the thrall of its right wing since the occupation and, for some reason, men with that worldview seem universally obsessed with having sex with young 'uns.
And like here, the majority of Japanese are too disillusioned by the failures of their government & society to think any positive change can happen, so they never push for it. But it does happen. The age of consent has recently been raised after decades of pressure.
Anyway, you probably knew all of this. But I find "Oh, Japan!" is something that needs constant correction.
