In this particular situation, Harambe was causing harm to the child, more of a curiosity but with a very strong and less dexterous creature. I don’t think a wild animal should be held accountable for being themselves. So his death is still bullshit.
There is another example of a child falling into a gorilla enclosure and a female gorilla protected the child from the other gorillas until the zoo staff arrived.
Most males in the animal kingdom are, at best, indifferent to children of other males/species. At worst, they actively kill babies from other males.