This law is moronic, art is art and you can't censor it.
Good on them for fighting back.
I would hardly call "Erotic depictions of minors" art, I prefer to call it "Sick".
Censorship is a greater evil.
So moving away from the subject of anime, are you for or against penalization of child pornography ?
The creation of real child pornography should be banned, yes. That legitimately harms real children.
The possession of it is a trickier issue, as it shouldn't really exist in the first place. In an ideal circumstance, if the possessor in question never actually harmed a child, they should go without penalty, and the creators of the "substance" in question would be tracked and shut down. Alas, real life always gets in the way of my idealism. And no one ever agrees with my idea that pedophiles might not always child molestors.
Back to the issue at hand, I always compared lolicon hentai and manga to the situation I call, Baby Skull Necklaces.
Now, say necklaces featuring the skulls of infants were to become very popular. Of course, getting baby skulls would mean alot of baby murdering and tiny grave robbing to supply the demand, and that's bad. But say, instead of going ape on your local maternity ward, they just make fake baby skulls out of painted wood. People get all the baby skull necklaces they want, and babies get to keep their tiny heads. Of course, corpse based jewelry is a very sickening thing, and as much as we wish it would go away, if no actual babies are being harmed, you can't do a thing about it.
The same applies to lolicon. It's essentially drawings on a page or screen, so no REAL child is actually getting sexually abused. Thus, no reason to censor it any more than any other kind of pornography.