Thanks for the post ... decent article, although it embeds specific leftist assumptions about the nature of political conflict, I.e. that it has some objectively desirable resolution.
Generally speaking, I would disagree with you though on the alignment ... certainly leftist circles in American politics tend to be dominated by technocratic forms of debate, but the actual demographics of the Democratic Party nowadays tend to express fairly violent and fractured lines of conflict among a constellation of interest groups. There was a good article I recently read on the growing division between the parties, and how Balkanization faction politics have come to dominate the Dems, just as populism dominates the GOP. Can’t recall the cite tho.
You see this playing out in the Democratic primaries, where the debate terms are ostensibly about rational policy disagreements, but the primaries actually are decided primarily by signaling perceived interest group alignments. Cf the bitter battle yesterday over attempting to indict Sanders of misogyny.
I do like that article’s Marxist-type characterization of people holding up a bunch of charts and graphs and declaring that they show why their current social position is truly meritorious and why the yachts are sadly necessary. It’s a pretty direct way of addressing the tendency to declare existing social power relationships to be mandated by objective reason, while being uncritical about the role of irrational class and institutional power in advancing that argument. This often manifests by asserting a series of minute technical arguments, while ignoring their larger political effects and context as either being irrelevant, unpredictable, or immoral to take into account.
Generally speaking, my view is that the essence of political disagreement is almost always driven by conflict rather than mistake. It’s precisely that which makes it identifiable as political conflict in the first place, as a distinct phenomenon relative to the generic forms of human technocracy that attempt to resolve problems by agreed metrics.