You are a sick sociopathic and possibly psychopathic individual.  These particular mental health markers are often determined by the murderous urges that one voices and then in extreme circumstances acts out upon other living creatures. Murderers tend to start with innocent animals and then progress to their own kind.

You seem rather ignorant yet you seem to believe that as human being your life is somehow worth more than a cat.  I seriously doubt that given your negative attitude and likely mental illness, that you bring even a fraction of happiness to those around you that a feline or other companion animals do, in fact, if you have mated and then bred, I can pretty much guarantee that your wife hates and fears you and she and your children have zero respect for you, but hey, carry on with your cat-killing ways, I just hope for our species that you don't progress along the path that it seems certain you will.  Your family and your neighbors should fear for their lives.