Yes, “they” might be fighting for absurd reasons but everyone does, to one extent or another. At some point there has to be a concerted effort to minimize casualties and suffering, and that effort usually comes hand in hand with picking a side - as long as your goal is a reduction in harm and violence, that side is often the weakest (in many senses). But pick any side for all I care, if your intentions are holistically sane.
This is inherently a political effort, one that necessitates impartiality in order to sway public opinion, political weight, budgets, etc. And so these weird “holier than thou” moments arise - yes, sometimes for the sole sake of claiming superiority, but more often than not because “impartial” action is necessary to move the issue forward.
Mind you I don’t agree with Wikipedia on this one, given its nature, but still - embrace the hypercomplexity and patterns and nuance will both emerge and you’ll have something to work with, at the risk of maybe realizing that often to play a part in reality is to pick a side, even if it’s somewhere on the spectrum between two insane positions.