Fox hunting was a very inefficient way of controlling foxes besides being rather cruel.So are many hunting methods that rely on dogs.
However foxes can and do get to the point where they are in danger of eating out their resources.Some sort of control is required to keep any of our native species numbers at a healthy level.
However as someone pointed out earlier I don't think that for some supporters that the health of foxes was paramount in their decision to vote against the sport.I remember one MP suggesting going after the sport od angling next..Stupid woman.At least fish can be eaten unlike foxes.
