https://www.nationalgeographic.com/news/2016/08/humpback-wha...
https://www.smithsonianmag.com/smart-news/male-orca-and-its-...
A young male orca and its mother kills a orca baby by drowning it during four hours, with the baby orca's mother nearby.
The researchers are guessing they did it so that the other mother orca that had just had its baby killed could be impregnated by the young male orca, thereby making sure that its genetics would be spread.
That exceptionalism only really applies to in-person encounters. If it's out of sight, out of mind, then we're as indifferent as any other.
It's only in places where you have the luxury. Humans still eat veal. Male baby chick are still being shredded alive.
https://en.wikipedia.org/wiki/Chick_culling
The meat industry hasn't been completely taken over by robots yet. Humans are still doing the killing, especially with calves. Tribes that heavily rely on hunt won't hesitate much either.
Regarding playing with our prey, we elevated it to sport and culture (Fox hunting for example). Not even for sustenance, just entertainment.
Since this is a thread about Orcas, Orcas are extremely friendly to humans and there are no reported human deaths from wild orcas. There's countless videos you can observe yourself of them playing with kayakers, boats, or even kids scratching the orca's tongue. Hardly would consider that "very ruthless."
My first reaction was, "Wow, fish must hate us."
What aspect is over-humanized?