When I was in school where I live (America) it was taught he was a serbian nationalist affiliated with the Black Hand. Not saying you arent right, just saying that it depends on your education
What anarchist started WW1? Gavrilo Princip was a nationalist, not an anarchist. Inspired by anarchists and anarchist strategies, but he was a nationalist above all.
Bella Ciao is an italian partisan song that has been used by antifascists since Mussolini took power. I highly doubt its a video game reference even if he was possibly first introduced to the song by HOI4.
Followers of the Apocalypse, the Railroad, the Minutemen. We got good guys, but they are never utilized well
Hang in there bro, it gets better.

I want shitposts, not shit posts
Depends where you live. Where I live we just get more funded cops to more expensively harass houseless people.