So regarding Shaf...and the discourse surrounding him. I will admit that I personally don't find Shaf as frightening as he should be(personally I find Serov more frightening in the "it is politically relevant and unnerved me sense, will write why later"). Before you report this post to the mods, don't get me wrong, he is a awful person, I know the message the writers wanted to convey, and he's perhaps one of the worse choices for the world since he closes the world off to any hopefuly sucessor to german hegemony but his actions.....are kinda the norm for HOI4 villains.
I know that Twiggerjet found Shaf his most hated warlord in the Doleres Umbridge sense, but I will note that OP does not like playing far right ethnic supremacists because of the genocides and oppress minority thing. My main criticism here is that while we see why his path is evil, it's honestly bog standard fascist as far as HOI4 mods go.
Yawn. I've seen his kind in Red World, Kaiserreich, even EaW. HOI4 mod villains or far right focus trees tend to have a specific pattern consolidate power-->oppress minorities-->purge-->stake claims=profit. This pattern has repeated so many times(like the far right unifiers for America in red world are virtually all like this) that it loses some of it's impact.
Now the same could be said about Speer, who I do find genuinely unsettling, in the mod, but Speer has some added context: You're preserving an empire that historically was proven to be very evil and genocidal killpeopleist, as Shaf you're just a fascist unifying the country, doing fashy thins, and crushing your opponents, and surpassed in your crimes by figures that are at least to me more openly reprehensible(Oktan and Rodzaevsky come to mind)