This line has been refuted by Rashid and the NABPP. In particular:
Marx himself stated those who presume there could be an “equality of wages” under capitalism, harbor “an insane wish never to be fulfilled,” and those who base political lines on such a notion reflect “that false and superficial radicalism that accepts premises and tries to evade conclusions.” Which is a true characterization in every sense of the VLA [vulgar labor aristocracy] proponents. So, because the cost and standard of living and thus wages are much higher in the US than, say, Nicaragua, does not—according to Marx himself—make the US worker any less a proletarian than the Nicaraguan worker.
As for consuming more value than they produce: if their employers are still extracting surplus value from them, then they are not consuming more than they produce. That’s the entire definition of being exploited, they are not being paid the full value of their labour. Super-exploitation is when, on top of not being paid the full value of their labour, they’re not even paid enough to reproduce their own labour. So yes, western workers do generally avoid super-exploitation, but they do not avoid exploitation.
Rashid’s own response MIM or MLM? Confronting the Divergent Politics of the Petty Bourgeois “Left” On the Labor Aristocracy and Other Burning Issues in Today’s Revolutionary Struggle applies to that. Both of your cited articles continue to make the error of attempting to rank oppression and exploitation on a global scale, and then say, “See, (Black/White) Americans are actually doing pretty well by those standards, how can they be exploited/oppressed?” If we go by that line, then we’d end up with conclusions like “Some of the national bourgeoisie are in fact oppressed/exploited by capitalism, because they aren’t high enough on the global QOL rankings.” While true, imperialism can force various national bourgeoisie to be unable to realize the full profit of their surplus value, this doesn’t mean that all of a sudden inter-class solidarity towards communism becomes a thing. Similarly, just because workers of one nation enjoy a higher QOL/wages than another, due to whatever factors, does not mean they cannot stand in solidarity with each other to achieve the overthrow of capitalism and begin to more equitably divide the products of their labour.