>nothing to do with gender or sex
Everything to do with gender or sex, if you dont believe me i urge you to read a bit into Evolutionary Psychology and group dynamics.
These are archetypes that humanity has known and perpetuated since before antiquity and they have been well explained by now.

>he is a very good case study of the crisis of masculinity
Exactly. youre right on that.
hes a case study on young men with no father figures that never learn restraint and accountability.
There is indeed a problem with this in the western world due to rising numbers of absantee fathers and single mothers that dont know how to deal with a physically and emotionally powerfull young asshole thats confused and doesnt know what to do with his life.


>this is what toxic masculinity is all about
Toxic masculinity is a Feminist talking point created to deride men and male behaviour.
Nothing more.
What you discribe is the behaviour of a teenager that hasnt learned to be mature yet. This is normal in Humans, but not past a certain age. Attributing it to "men" or "masculinity" is ridiculous.
>Harmfull
To whom?
Everything i have said is positivisitc, if people behaved more like that, they would be more happy.