I know that:
- We were not there
- We are hearing only one side of the story
- The Captain must do what they think is right for that moment in time
- There will be those (possibly crew) who will say that the staff are always right
- The pax are not always right
It's just that - you would think United would be wary of getting themselves in the newspapers again ... It is reported in this story that the cabin crew had already resolved the problem, before the Captain took further action that (allegedly) undid the good work of the CC.
United Airlines pilot makes emergency stop and kicks child with autism off plane because he 'felt uncomfortable' - Americas - World - The Independent