>>1156383it is because lots of weebs went through their awkward phase around the age commonly depicted in anime leading and during this time idealized the girls/boys around them while never having fulfilled any facet of their ongoing desire and idealization
this never goes away (at least on a more subconscious level) and anime that depicts young girls/boys in lewd ways is non-harmful (in terms of other people, who knows how healthy it is for the person) and appeals to the buried desire that went unfulfilled
