Earlier quoted context omitted.
Clearly orcas have culture that spreads. It’s a bit silly to speculate about patient zero being a matriarch as there’s zero evidence, likewise until a mechanism of communication is known saying it was or was not communicated between pods without evidence isn’t reasonable.
In this case I think it's interesting how people project their personal social views onto the blank slate. The idea that the trend must have started by a female whale that was somehow harmed and is now seeking Justice if it's cleanly into the framework with what some people view the world. The idea that it was started by some way all that got a kick out of causing destruction doesn't have the same social resonance
You are injecting a political spin where there is none. Orcas live in a matriarchical hierarchy. People assume that the orcas have started hunting because the "pack leader" was hurt. They might or might not be correct, but they're not doing what you're describing.