Thunder Bolt
Silly old bat
You've got this the wrong way round. It is the PLP who should be moving to support the leader and the will of the party. Thats democracy. If they don't want to support the leader and the membership and represent their views then the honourable thing is to quit. As they are politicians and not too many of them are honourable in my experience then they are going to need to be deselected. You can't have a whole bunch of MPs who don't represent the views of the party or support the elected leader. No party would put up with that.
The party leader allowed a free vote. If he wanted his MPs to support his views then he should have applied the party whip.