To bring or not to bring

I have bought the air tickets to sydney. To join XL work trip in sydney. The qn is, whether i should bring Yankai along? I have bought his tickets too, but its super discounted tic, so its sort of alright if we change our mind and dun bring him in the end?

As mentioned, he is a really loud and demanding baby... although most of the time he is ok... but when he is angry, he'd be really angry, like a baby spitting fire (like the baby in The Incredibles). He screams loud and is inconsolable.

Its already daunting to bring a baby overseas alone. I mean, its a 7-8 hours flight, how do i go to toilet on board? How to make him sleep in the tiny space, on my lap for 8hrs? How to carry the luggage with the baby on tow? How to eat my meals on board with him? Will i be able to "enjoy" the holiday with him around? On top of that, there is a high risk of him screaming on top of his lungs 50,000ft above the ground with hundreds of ppl trying to slp staring at me.

Ok, if i really dun bring him... i will have to pump? There is already not enough ftozen stash for him. So start formula will be inevitable. How shud i bring back the milk?

Haiz... there is equal pros and cons on both side and i really cant decide.