Also a valid example, I'm just of the mindset that everything is inherently political at its core.
Other valid examples: Persistent bureaucratic inefficiency, corporate selective inefficiency ("boy we were really fast at polluting that town in Ohio but it's going to take us ages to clean it up. The EPA is to blame!"), and of course race and gender common examples explicitly mentioned in the article ("but cleaning is 'women's work'"; "what do you mean black people have it tough in a white-majority society founded by wealthy white agrarian slaveholders?")
I mean, we don't all need to self-immolate to be a decent person, but it's like how John Brown became a litmus test in the Pre-Civil War era. Was John Brown right or wrong? Only horrendous people believed what he did was morally wrong. Aaron Bushnell might serve a similar purpose in the modern era.
Shouldn't have let the confederate leadership go on living after the war. Arguments can be made for average soldiers since many were drafted against their wills and/or propagandized into their beliefs, but an example needed to be made of the leaders and it wasn't.
"Oh, you want to break away from the country in order to keep slavery going? Well please stand in front of that brick wall over there. Runner-up trophies will be distributed imminently and in an orderly fashion. Here's your blindfold because we'd like it to be a surprise. Would you like a cigarette while you wait?"