The USA doesn't (over any long historical time) push for anything much like corporatism, but instead for capitalism ("corporate capitalism” or “crony capitalism” to those who view “capitalism” as a utopian free market system and not the concrete real-world system for which the name was coined by its critics, I suppose.)

The US has been pushing toward something blending corporatism and kleptocracy under Trump II, but I suspect that people using "corporatism” to refer to a longer-term effort of the US are misusing "corporatism” (where the body—“corpus”—actually refers to the aggregate of government, business, and social institutions, all of which are interlocking and working together, with interlocking formal control structures for that end) to mean “capitalism oriented specifically around the interests of corporations”, i.e., "corporate capitalism”.