You are a crew, and you operate as such - if he is uncomfortable, your briefing is deficient - if he isn't listening, it is your responsibility to make sure he is.
He might be uncomfortable because he doesnt know what hes doing and shouldnt be there in the first place.You cant brief for a lack of experience.
You ALWAYS go around on the call, and he learns from the fact that you LATER tell him it was unnecessary to call a go-around in those conditions stated.
Absolutely,IF the crew make-up is TWO EXPERIENCED pilots.If its not,then the Captain must make his own decision.
In what world do you think that your experience enables you to continue in strong windshear??!
Some airports are problematic which make them cat C.Terrain,windshear etc.If you discontinue the approach every time your inexperienced co-pilot says hes not happy,you may never land.Inexperience has no business in a right seat of a jetliner at any time,and especially into airports like Samos or Katmandu for example.