Just FYI, govt. dark patterns in the US have been around for a very long time. For example, you could read about the "literacy" tests for voting in Southern states. Robert Caro has a nice description in Master of the Senate, vol. 2 of his LBJ biography.

EDIT: (From Caro) Questions on these tests posed to Black people in Alabama have included: "Give the names of all sixty-seven county judges in the state", "State the date when Oklahoma was admitted to the Union", and "How many bubbles there are in a bar of soap".