Real justified fear and fear of a fantasy are different. They've never seen their fears actualize and most likely never will. Their fear is like what a toddler has for The Boogeyman. Our fear is knowledge that there are is in fact a Boogeyman or Booygmen in the house right now. I decided to turn that into a Simpsons joke instead of concluding my serious paragraph seriously but you get my point

Sure some of the top bourgeoisie live charmed lives after the fall of the USSR and don't really worry because they think they've got the whole thing locked down after winning the cold war. But not all of them feel that way, many of them exist in a state of anxiety when they see groups of workers together without management, when they see large protests. Deep in the back of their minds they know what they stand atop is unjust and that the only way to maintain it is via violence and propaganda and if those fail they know they're in trouble.

As to your average chud? They live in constant fear. Jumping at shadows. Brown people near them. Poor people, homeless. They clutch their guns tightly in their suburban castles fearful of tax increases, of people different from them, of not getting their way. Imaging studies have shown reactionaries have enlarged amygdalas, the part of the brain responsive to fear. Yes they're angry too, yes they play up the fear, but they're genuinely easily frightened people who weaponize that fear and twist it into rage rather than thought.

Oh that reminds me of something

From Lord of the Rings to The Dark Knight Rises we hear the same story again and again and again: swarthy hordes are surreptitiously manipulated behind-the-scenes by crooked wizards and deceptive illusionists — often hiding in plain sight, in our midst! — and lay siege to everything that is balanced and well-rounded and pure and good and holy and white and which by rights should be eternal. The manipulators do so for no discernible reason other than greed and ressentiment. It’s in every instance nothing but the bourgeois terror of a worker uprising led by a Communist party made intelligible to adjacent social classes by appealing to their individualistic self-esteem, the claim that there are yet darker parts of the world above which the imperial poor can still stand tall.