I elaborated on it later, it's the concept of exporting the bulk of industrial production to foreign countries to super-exploit for super-profits.
Imperialism defeats itself in much the same way Capitalism does, it increases in severity and exploitation until a boiling point is reached, and the country in the Global South moves towards domestic production and nationalization of their resources and products, rather than serving as an outsourced factory for wealthy Capitalists abroad.
What do you specifically mean? I just said Imperialism defeats itself, and people in the Global South can act against it by protecting their own production and resources.
They do. Supporting movements in the Global South against Imperialism by the Global North. Looking at the nature of Imperialism dialectically, it appears to be deteriorating as exploitation increases, so these movements are gaining momentum. This is what I mean when I say Imperialism defeats itself, as exploitation increases (as it must to counter the Tendency for the Rate of Profit to Fall), it also increases pressure against itself from those it exploits.