and this particular Captain tried to remind the Purser who was in charge, but the Purser was having none of it! Ergo
If this was the case then surely the Captain was justified in taking the action that he did?
The principle or the point that he was reinforcing when he dropped this purser off was that you can only have one Captain on board for the good and safety of all.
I wish this Captain all the best for his future.
Was his decision the best course of action? No alternatives?
He certainly had other alternatives but one suspects that the incident may have been the final straw and that he purposely chose this course.
I know nothing about the culture at UA and my next proposal is a supposition.
If a situation pertained in the company where a senior pilot in that company felt that his position was being undermined by a culture of insubordination and lack of respect within that company then maybe he chose to confront that head on. Within that context I would say, within his own rights, this Captain made the most valid decision he could.