The problem with Cuties is that parents are not permitted to restrain their daughters from performing sexual displays. The problem with Desmond is Amazing is boy rapists. These are not a single problem of "child sexualization" - they're separate and specific problems.
I don't think that's the case - totally unrestrained female sexuality has been around for about 20 years and has completely destroyed society. It is true that we got there in steps but restrained female sexuality has been the norm for almost all of evolutionary history.