The union position simply regresses to we will make it impossible for towns to operate without unionized firefighters.  It is based on greed and greed alone.  But is not a surprise.

What will be interesting is if the Town of Caledon makes a Charter of Rights case against the union for persecuting its members based on what they do in their spare time.

Unions commonly subvert the common good.  now they are subverting the good of their members too.