Humpmedumpme
If I may?
Airlines AREN'T Air Forces. Right?
They aren't military organizations, there is no chain-of-command, in that (military) sense.
Therefore, my opinion, Captains aren't in a position of 'bossing' anyone around let alone 'commanding', 'ordering' or 'telling' an F/O what to do and what not to do. Those days are gone I'm afraid.
I'd say it's a positon of authority more about direction and management. If he/she as Captain runs into personality issues or attitude problems on the flight deck with an F/O, they should be passed on to the Fleet Manager, Chief Pilot or the one responsible for that sort of issue.
Being Captain is about signatures and identifying where and with whom the final blame lands when it all goes pair shaped.
Charm school supposedly taught us all how to get along and play nice. SOPs gave us a technique by which to safely operate the aeroplane. That's all.
Reading through these threads, perhaps F/O Ugly needs to be humiliated a couple of times to give himself a more refined sense of who he really is as opposed to who he thinks he is.
Another way to deal with him would be to NOT let him have a single leg as PF.
Personalities are what they are. No one says you have to talk to him. Stick to operational requirements. Briefings, checklists, operational discussion.
After that?
Silence!
Life's too short and there's no shortage of

flying aeroplanes. Are there?