We don't have photos of Jews being gassed at Auschwitz in Poland. No diary about " how I was pushed inside and the guards turned on the gas". No Aboriginal diary survives about "how I fell off the cliff".
Just this diary:
Commissioner MacDonald reported that in October 1844 a shepherd had been killed by Aborigines on the Irby Station at Bolivia, but no retalitory action was mentioned in the despatch. However, Edward Irby himself, when writing of the incident, describes how one of his shepherds, Robinson, had been killed by Aborigines and how four men had set out to find the culprits. In these few simple words he described in his journal the terrible deeds of that day:
"The blacks saw us coming and hid themselves on the rocks.
One, in his haste, dropped poor Robinson's coat so we knew we
were onto the right tribe. If they had taken to their heels
they might have got away, instead of doing so, they got their
fighting men to attack us. So we punished them severely and
proved our superiority to them."

I knew this author near our farm. We had a polished stone axe found near the Falls country mentioned. These valuable axes would only be dropped if the owner was unable to continue. It was found near an early sheep pen of bush poles as used by shepherds at night.

Baal Belbora: - Google Books Result

https://books.google.com.au/books?isbn=1925029220

Geoffrey Blomfield - 2013 - ‎Education
He continued: 'It was common after an inroad of the blacks upon the sheep and cattle, ... for a regular and indiscriminate slaughter in which young and old were shot down. ... .Men, women and children are butchered without distinction or stint. . .it ... on horseback, and he had first to set up facilities for his men and horses.

Whilst not doubting that there were incidents where killings took place, I must point out that Bluff Rock has no real cliffs, it has some very steep bits and some near to sheer but none of these could be approached closely on horseback and any aborigines on the Rock could have retreated into good cover among the many fissures in it.
There is a local book that has a lot to say about the so called "Massacre of Bluff Rock" but it is all conjecture, and even though there is a monument to the supposed massacre it was erected with more good intention than historical accuracy.
There are many versions of the tale so one can take one's pick.

Having ridden on horseback to the top of the Rock and clambered over much of it on foot (when much younger and fitter!) I have no doubt that local aboriginals, of the time, would have had no problem in evading Europeans.

Irby explains it :
"The blacks saw us coming and hid themselves on the rocks.
One, in his haste, dropped poor Robinson's coat so we knew we
were onto the right tribe. If they had taken to their heels
they might have got away, instead of doing so, they got their
fighting men to attack us".
--
Probably no-one suggests they rode horses over the granite which is risky at the best of times. But 4 men on foot with guns would find a group of women and children in crevices easily enough.
Port Denison Times. 1 May 1869 wrote : More than 400 natives are killed each year in Queensland. _ "Written in Sand". F Williams.

nicknamenick,

You do yourself NO favours at all peddling the attention-seeking, divisive, foul polemics of white leftist activists that compare the benign settlement of Australia with the Holocaust, South African Apartheid, invasions and territory wars.

Find a job or volunteering to occupy yourself and do something productive with your life. There are too many activists swinging from the taxpayers teat already.

erm..
the quotes are from right wing establishment nationalists.
You are putting words in my mouth.
why would you do that?