Hahah, lemme tell you this... there's a difference between nationalism necessarily birthed,

under backdrop of oppressed masses of Imperialism

(eg. Vietnamese nationalism truly developed under France, with the destruction of local Vietnamese feudal economy to pave away for imperial capitalist exploitation of land and labor; to make plantations and industry, dependent on building the French imperial economy)

and one under the backdrop of 'oppressed' Americans wanting their share of the pie; stolen Indigenous land and African slaves

(eg. American nationalism, who wanted independence from Britain, mainly due to the British trying to restrict their land expansion, worries of the British restricting slavery, and overall British empire co-optation of settler-colonial political economy)