The United States is different from traditional countries; it is a newly emerged immigrant nation, and due to its particularity and the short time since its founding, it has hardly experienced any dynastic changes.
Neither the Civil War nor the split and reunification wars of the U.S. were truly wars to topple the nation from bottom to top but were, in reality, internal conflicts between those in power.
Even now, despite the original United States republics being split, no matter how bad things get for their people, they've never thought about rebelling or anything much beyond hoping that the system can reform itself, much like the Civil War.
At most, there are protests and demonstrations, and occasionally looting sprees—but that's about it, which is why those big North American corporations can act so recklessly.
