We're not in camps. We're not fighting a war. Of course military violence is okay when you're fighting for your life, but that's not current society. This is an ideological war.
The funny thing with gendered languages is that synonyms can have different genders. So "el pollo" and "la gallina" both mean "chicken", but their grammatical gender differs.
It's also ignoring your hand would also heat up, ignoring the energy converted to sound, ignoring the heat loss to the environment, ignoring both your hand and the chicken would disintegrate if you hit it that hard, therefore transferring most kinetic energy without converting it, ignoring the enthalpy of fusion (they said it's frozen)...
I think criticizing people for what they do (eg: calling some politicians "murderers" because they allow genocide) is different than calling names just to hurt, which is what dead naming usually is.
I don't think anyone should be okay with racism or that kind of attacks, even on people they hate. Kim Jong Un may be a piece of shit (or not), but calling him a racial slur is unproductive and definitely crossing the line.
Here, the deadnaming comes from ignorance, not hate; and it's true that it might help clarify who someone is, but in this case everybody knows her for being the "leave Britney alone" person, not for her deadname. So it's really unnecessary.
...and the username just made the meme, not the art.
Also
a) low resolution image
b) the collar looks wrong, megumin wears no bell, and what is that buckle? looks like garbage.
c) the holes on the chair are not parallel, the one on the right makes no sense
d) what is that green thing on the right? most weirdly shaped pillow ever?
My assessment is: AI indeed, but check the one on Instagram (it's a bit higher quality) and you decide.