Should We Have Shot Harambe?

Yes this was the only way to avoid the 2018 HRC No Fly Zone escalations against Iran. Listen man, the gorilla was cool but you could be in a far worse timeline.

Tbh I am don't know anything about the behaviour of gorillas but imagining a child trapped with one fills me with an impending sense of doom

It has happened before. It’s a complete toss up and not worth the risk.
One incident had a female matriarch care for an injured child, protect them from hostile males, and then lay them at the service door so that zoo staff and paramedics could safely retrieve the child.
Other incidents, primarily by males, have had the gorillas drag the kids around like rag-dolls or beat them to death. Even a probing “love-tap” from a fully grown silverback is usually fatal to a regular child.
Harambe was curious and checking out the child, but that could have changed in an instant for any reason. It would have taken a fraction of a second for him to kill the kid.
I felt the same way at first but you have keep in mind that the gorilla is pretty capable of defending itself
- Not against a fully grown child. That’s usually a one sided encounter. Coughing baby vs Hydrogen bomb. Harambe stood no chance. A gorilla would be instantly mauled by a child.
Or you could imagine the gorilla trapped with humans.

To save a kid? Probably yeah, and I mean, that guy is gonna live the rest of their life knowing that, at least for a time, they were one of the most hated people on the internet. Their family had to go into hiding and delete all their social media due to the harassment. So regardless of if one blames them for it, they have paid for it.

I don't know if there is any important or necessary conservation of gorillas done by this zoo in particular, but it is as barbaric to have these animals in captivity for amusement as it is barbaric to kidnap people from far away lands and use them as entertainment.

And even if their goal is conservation, there is still a contradiction in having to display the gorillas for human entertainment to make money to support them.

Harambe is a victim of capitalism no matter which way you slice it.

It is sad but yeah, it was necessary in this case. A tranquilliser can take up to a few minutes to take effect and would not have guaranteed the kid's safety.

The overall issue however is not whether it was justified in this case but the zoos themselves. It is absolutely evil in my eyes to entrap animals in cages and exploit them for entertainment. The entire zoo industry is disgusting and needs to be rid of.

Harambe apparently means communal labour in Swahili

I found a YouTube link in your post. Here are links to the same video on alternative frontends that protect your privacy:

Harambe was caring for the kid by dragging him like a rag doll around the moat while running and almost drowning him? Or was it the part where he slams the boys face into a concrete floor before dragging him across the enclosure by his leg again?
Gorillas are not known to care for human kids. They could care less. All it would have taken was for the kid to look Harambe in the eye, make a movement he didn’t like, or a sound he didn’t like, and with one love tap Harambe would have sent him to the moon.
The incident you’re probably referring to of “gorillas caring for human kids”, was one isolated event, and the gorilla only did that because she was the clan matriarch, and the zookeepers had trained her over multiple years to take her children to the rear service door if they were ever badly injured. She also had to fight off the males who tried to territorially defend against the unconscious kid.