Pakistani mercenaries or 'rent fighters' have been used by UAE, Saudia, Libya, Jordan etc.
In fact the so called Arab unit that fought Saddam's RG to stand in Battle of Khafji were Pakistan rent soldiers. And let's not forget about use of Pak rent a military in Jordan where they killed Palestinians more efficiently then Israeli's.
In Saudi and UAE militaries you get rent boys going as 'advisors' and even fly jets. The reason the ignorants here get constipated about these rent boys is because they see things with the sectarian lens. You know that Sunni/Shia schism.
Apples and oranges. Those were official deployments authorized by the Pakistani state. With UN mandates. With payments (if I am not wrong). Using that logic 500.000 US soldiers were mercenaries. Hell, all soldiers are mercenaries using that logic.
Anyway that was 30 years ago. The "Black September" stuff 50 + years ago (or whenever it was) is shrouded in mystery and I for one second don't buy it similar to the 1971 "genocide nonsense".
I am not aware of the Battle of Khafji other than the brunt being Saudi Arabians and Americans as per official sources. I did a quick Google search and I could not find any evidence that tells about Pakistanis fighting instead of Arabs. Sounds like utter nonsense to be honest.
I am not aware of any Pakistani fighter pilots in the air forces of Saudi Arabia or the UAE. Can you provide any tangible evidence of that being the case?
Anyway even if we assume that what you wrote is correct and comparable (neither is the case), that was ages ago.
We are talking about events now. 1000's (probably) Pakistani cannon fodder used by Mullah's directly in Syria, Iraq and elsewhere. Those moronic rallies are occurring right now. In Pakistan as well.
This has nothing to do with sect. I could not give a crap if the Mullah's were recruiting Pakistani Zoroastrian converts, the same logic would apply.
Just between the two of us, am I wrong to assume that you have some short of soft spot for the Mullah's in Iran? I mean, each to their own, but a straightforward condemnation of our citizens being used as cannon fodder would not hurt unless the "Pakistan first" motto that many users have here is empty air.