The korean shooter Yeji Kim became a (positive) meme first for her cyberpunk aesthetics, which many people found cool. Shortly after the turkish shooter Yusuf DikeƧ also became a meme for his own, very different aesthetic.
Also there is a bunch of other memes in circulation that compare the turkish shooter with various other people, e.g. https://i.kym-cdn.com/photos/images/original/002/873/956/0f7.png
Just because you are comparing a woman and a man does not make it misogyny. This is basically just a crossover of two recent memes.
A3. Not A2.
https://en.wikipedia.org/wiki/ISO_216