It took a lot of blood and violence to get to the point where we all think blood and violence isn't required in some situations. Millions and millions of people struggle every single day while the rich look for ways to take away their rights. It's literally human nature to want to fight back against that.
It isn't a fantasy, it's history. It is how our comfortable world was built, and if you think it is eerie then you should reevaluate how you feel about the benefits it has brought you.
It's funny, I think they are all bark and no bite. When push comes to shove we often see their fantasies amount to nothing more than materialistic looting. They will never live out their dreams of lynching billionaires.