It sounds ridiculous because the US can't possibly size up its own territorial aims while it's busy committing cultural suicide. Russia and China aren't confined in that way.
Plus, when such large portions of the economy are exporting culture and currency, the US is basically in the business of selling cooperation. So that would fall apart pretty quickly, and with it the immigration the sustains population despite low fertility rates.
Plus it's just inconceivable that it would be a goal in the US. Maybe that's just good propaganda, but I think not.
Well, sure, if you consider America's empire as a flex of "softer" power, as in selling cooperation and Disney, then maybe it's just absurd to think of Canada being any more culturally American than it already is.
Plus, when such large portions of the economy are exporting culture and currency, the US is basically in the business of selling cooperation. So that would fall apart pretty quickly, and with it the immigration the sustains population despite low fertility rates.
Plus it's just inconceivable that it would be a goal in the US. Maybe that's just good propaganda, but I think not.