How on earth can a First Officer take command from a Captain who doesn't wish to relinquish same?
Quite simple really and I don't know why airlines do not include this in their operations manuals. If it is quite obvious that the captain has ignored repeated calls from the first officer to go-around and is intent in pressing on regardless then desperate measures are called for to prevent a certain accident.
The first officer must loudly call "GO-AROUND CAPTAIN" and simultaneously retract the landing gear. Under those circumstances no captain, no matter how culture driven will then press on and deliberately do a belly landing.
Having now forced a go-around, the first officer will probably be blamed for the go-around and have to face the consequences. That all depends on management culture. But as second in command he has taken a responsible action and by doing so possibly saved an accident. If anyone can think of another sure-fire way for a first officer to prevent a potentially deadly unstable approach by the captain then let's have it now on Pprune. Just remember there are some types of captain who think that real men never go around. They walk among us...