Lenin correctly identified that “Imperialism is the highest stage of capitalism”, so it’s already part of “capitalist realism” e.g. “the end of history” and “human nature” fatalism that everyone is evil and greedy born with original sin so you can just plunder and rape your way through the world because only god or the market gods can judge you. And if you don’t do it, “they” will.

I don’t think there’s a need to specify it more. If anything it serves to obfuscate the relation between the two.