This might be a thread about cats, but the justification has been that cats are destructive to our environment, so surely we must consider other factors that are destructive when considering if trapping and killing cats is a worthwhile pursuit.
This has been brought up a couple of times throughout the thread, but has been brushed aside, but a massive percentage of people in this thread are being completely hypocritical about saving our native Wildlife. Why all this talk of how destructive cats are to native animals, when humans are by far the most destructive of all creatures? We knock down their habitats to build our McMansions, pollute the air with our vehicles, clear the land to let our crops grow or our cattle graze, poison the soil with our pesticides and insecticides, excavate vast areas to strip the land of its coal and iron ore and the list goes on yet we are focussing on the impact of cats on the wildlife left in suburbia. Whenever someone has piped up and said that trapping cats will have little or no impact they have been shouted down and the sentiment of "every little bit counts" seems to win. If every little bit helps then there are a million other steps you can take that are less radical, have no impact your neighbours and would have a larger impact on the overall well being of our native wildlife and the conservation of their habitat, however this seems to be overlooked as a large number of you seem to like the idea of harming cats with the justification that you are just "doing your bit".
If you live in suburbia, eat beef, drive a car or watch your 50" plasma TV you are contributing to the destruction of native habitats and the death of our native wildlife just as much as any cat you decide needs to die. I know I do all of the aforementioned things, and I'm certainly not proud of them when I think of the impact they have. We as humans need to take a long hard look at ourselves before we pass the blame onto any other living creature.