Yeah, AOT is VERY fascist.

There's a character that is a depiction of a Japanese war criminal iirc and he's one of the "good" guys, which is also the entirety of the military too. It also makes the viewer root for the military coup and the only answer for every big problem presented is literal genocide.

There's also zero leftist movements present in this world, like not even a protest asking for the basic stuff the people on the outer walls and on the underground don't have while the inner walls have everything.

And to top it off a lot of fans were openly spewing the same genocidal fascist rethoric the story promotes for years while using an Eren or Floch pfp. It's genuinely insane to me how this happened.