Sounds to me like you were a spoiled kid or you have spoiled kids.
On what planet is it appropriate in a cabin full of people you don’t know, to let your kid yell and scream and bother everyone for 5 hours?
That is the parents GD responsibility and they are selfish awful human beings.
It is an exceedingly selfish, entitled attitude.
Let me be clear.
Brandon wrote - “Can we get children under 12 banned from business class…please?”
Let’s explore this more factually.
Yes, Parent should control their kids. In restaurants. Airplanes. Buses. Everywhere. The real failure here is the parents. No question there.
As for Brandon’s actual wish/complaint, United isn’t at fault:
https://www.united.com/en/us/fly/contract-of-carriage.html
From what I read, there is nothing here about United guaranteeing customers - business class, coach, first class - a perfect trip. Indeed, there isn’t anything about parents being obligated to control their kids.
I’ve had plenty of flights, train and bus trips I’m my life. Most are peaceful, some were fair, and a handful were awful. The best way to avoid nuisances is loud rock music and reading material.
It also helps to have an understanding that God didn’t guarantee us perfection. Indeed, offer this little imperfection in your life up to God. If an unruly child on a flight triggers you to go on social media petulant frenzy, maybe the problem is in the mirror.
Fly private. Or drive. Or learn to read contracts. Or, start your own airline that bans kids.