The problem is not the intentions of Desmond or Nemis or even their parents (although of course if their are nefarious reasons that's not acceptable) but of those who pay to see this kind of act.
Sure some may just love the liberation and non societal bend but many may be titivated by this and although it may not be the intention, it will be the result.
I don't think a boy dressing up like this and doing it at home or in front of family is inherently wrong if they feel comfortable, but to commercialise it seems so tacky. If it's truly about being themself it's surely enough to be accepted by family and friends?
I have trans friends but underage sexualisation of any gender identity is not acceptable.
I personally think although it may sound conspiracy theory esque that part of big business, government and aristocracy is being involved with paedophilic lifestyle of some sort, or at least accepting it.