Although I'm all in for the critique of culture, I defy the assumptions from where most of that critique seem to emerge.
First, it is hard to ignore the lack of semantical resolution when terms like pedophilia are thrown around, without distinguishing it from hebephilia and ephebophilia.
While the first one is aberrant in a biological sense and has rarely been accepted by Western cultures, with only Talmud, as far as I remember, openly condoning and promoting it in the West.
Kethubot 11b
An adult man who engaged in intercourse with a minor girl less than three years old has done nothing, as intercourse with a girl less than three years old is tantamount to poking a finger into the eye.
Rava said that this is what the mishna is saying: An adult man who engaged in intercourse with a minor girl less than three years old has done nothing, as...
www.sefaria.org
(It is somewhat shocking that Talmud, which deals with moral imperatives that impact the lives of humans beings, is never under such scrutiny as anime, which deals with fictional characters. I suspect that anti-Asian racism is what primarily motivates the attacks towards the aesthetic principles of anime).
There is no biological or historical support for the condemnation of hebephilia or ephebophilia. They are regarded as normal biological impulses from healthy human beings, and the only limitations are of moral and legal origin, as many things are: part of the social contract.
As the latent impulses for hebephiliac stimulus seem to be biologically coded, I argue that if we, in fact, condemn acting on said impulses, giving them a scape valve (id est, in the form of drawings) that hurts no human being is less disruptive and more civilized than trying to completely suppress them.
You can't reverse million of years of evolution, where menstruation determined the begining of the reproductive practices, not only in humans, but in mammals, as anybody with pets knows, in mere decades. Baldwin effect (coding culture into genes) takes fifty generations to work. Less than 50 generations ago, hebephilia and ephebophilia were still common. Less so inside the Hajnal line, habitants from inside of it, I concede, may indeed have a jumpstart.
Learning some history would show you how young people used to marry and to give birth to children in places like Greece, Rome, Spain and even the USA (have you ever taken a look at the biography of the acclaimed Usanian writer Edgar Allan Poe?).
Thus. I find some positions uninformed in terminology, biology and history; while also horribly hypocritical in two regards: the focus of their critique on the least worrisome manifestations of what they perceive as an issue, and their reluctance to accept solutions that, in fact, help their cause by providing a surrogated activity that causes no harm to the people they say they want to protect.
From my point of view, the arbitrary selection of an age is not a good way to measure the emotional and intellectual maturity of someone. Everyone grows at its own pace, some people would be unprepared for sex at 21 and others would be ready at 16 (which is the legal age of consent in Spain [it was, in fact, 13 when I was young], which is where I live, so I'm not advocating for anything illegal).
The issue is very complex. But virtue signaling and passing judgement is easy for everyone to do.