“you people are next” doesn’t sound direct to me because “next” for what? Next for a random vigilante to shoot, next to die in general, next to face bad PR?
My interpretation also leaves no room to imply I’ll be the one actioning whatever the “next” thing is. I’d use “you’re next” in the same use case as “karma will get you” or “the universe will balance out your luck” it’s more of a cosmic wish than a rise to action.
I can see how it’s directly linked to “people are out there shooting CEOs for this, you’re next” is threatening, but I dont see how the language of the threat implies that the person saying the threat has any intention to also be the shooter, and not just that they wish and believe that a shooter is out there with this CEO on their hit list.