I think this misperceives the nature of the American polity. 20-35% support secession of their state from the union, depending on region. https://images.app.goo.gl/8fwmTm44Q55ReEV76. For comparison, the Basque region of Spain is at 17%. That’s certainly not a position advocated by “the rich.” Is it so hard to believe that a big chunk of the rest are skeptical of big government?

Distrust of the government is deeply baked into American culture. Blaming it on “the rich” effectively denies that culture can be a thing (or assumes it can be easily constructed given sufficient monetary resources).