"I would argue that children dancing sexually is not harmful and is not exploitative if the child is doing what they enjoy. In fact I would argue that a child who is able to dance like that in front of the entire world is a sign of positive mental health. It takes a lot of confidence and a lot of self esteem to be able to do what these girls did in the film."
Sadly, this is NOT the notion closet perverts have.
They believe children expressing their joy by "twerking" and dancing in a luscious way must be reserved for "PRIVATE" times, affordable only by rich, away from prying eyes of the public.