Why not? Has America acted in any non-imperialistic way since its conception? Do you really think the president in the States is anything else but a PR monkey and a scapegoat for conglomerates (many of them military contractors, so they get the money and the others get their piece of the land)? Please. Maybe a third party option, sure, one that isn’t backed by General Dynamics and Palantir, but Americans simply aren’t that clever nor do they care.