Sorry about the long post (shortest leftist wall of text be like)
When it comes to the "labour aristocracy" in the first world, I feel like many leftists wildly exaggerate both its size and wealth. This is often done to the point of erasing class conflict in the first world, as this article does. I might be totally wrong here, but i feel like these authors are making anti-marxist errors. The following points are emblematic of what I am talking about (emphasis mine):
The class interests of the labour aristocracy are bound up with those of the capitalist class, such that if the latter is unable to accumulate superprofits then the super-wages of the labour aristocracy must be reduced. Today, the working class of the imperialist countries, what we may refer to as metropolitan labour, is entirely labour aristocratic.
This is just completely wrong when one considers just how many poor people live in the first world who obviously don't receive super-wages. US poverty rates alone are always above 10%, and that poverty line is widely known to be inadequate. The US also is significantly more wealthy than Europe, where the calculus is even worse. And that doesn't even account for the wild wealth disparities that exist in the first world.
When ... the relative importance of the national exploitation from which a working class suffers through belonging to the proletariat diminishes continually as compared with that from which it benefits through belonging to a privileged nation, a moment comes when the aim of increasing the national income in absolute terms prevails over that of improving the relative share of one part of the nation over the other
What it is saying is that when the working class share of national income becomes high enough, they start to want to exploit other nations as that becomes beneficial. However, the expansion of imperialism in the neoliberal era is also the reason for the stagnation of living standards in the imperial core. By accessing a larger pool of labor in the south, the position of northern workers is threatened. That's why Northern workers have fought against outsourcing, the very fundamental imperialist measure.
Thereafter a de facto united front of the workers and capitalists of the well-to-do countries, directed against the poor nations, co-exists with an internal trade-union struggle over the sharing of the loot. Under these conditions this trade-union struggle necessarily becomes more and more a sort of settlement of accounts between partners, and it is no accident that in the richest countries, such as the United States---with similar tendencies already apparent in the other big capitalist countries---militant trade-union struggle is degenerating first into trade unionism of the classic British type, then into corporatism, and finally into racketeering
I am not too familiar with the history of the trade union, but wasn't the degeneration of the unions largely a result of state and corporate action against the unions? They engage in union busting, forced out radical leaders, performed assasinations, etc. This seems like an erasure of the class struggle to the point that the unions are depicted as voluntarily degenerating.
I feel like these kinds of narratives, which are popular amongst liberals as well (liberals will often admit that weak nations are exploited. Example - America invades for oil meme) tend to justify imperialism to westerners. I have on more than one occasion seen westerns outright say that they don't want to fight against imperialism because they benefit from it. I think that's how a lot of westerners justify supporting imperialism. This kind of narrative ironically cements the power of imperialism