It's a well-known fact: Cats are predators. From personal observation, domesticated cats proudly display their hunting prowess by bringing their dead trophies home to their owners. They have the instinct to hunt and, dare I say, joy in hunting small game like birds and mice.
This fact seems to outrage some people, so much that they want to kill the offending kitties. Others want to capture feral cats to spay/neuter them before releasing them back into the wild.
But we know from history that every time someone gets a bright idea like this, humans and other species suffer.
Let's take one horrific example: Chairman Mao Tse-Tung'spogrom against sparrows. Sparrows indiscriminately ate the grain that Mao claimed as his. However, as he and his minions killed the little birds, another problem sprang up: Without the birds to keep them in check, locusts and other types of bugs proliferated, then promptly ate the grain that was already in alarmingly short supply.
While altering the natural order of sparrows and bugs were only one of the problems that Mao's hubris and machinations caused, he generated massive starvation, and an estimated 45 to 60 million people died as a result.
Mao's story should be a warning to the rest of us, but with the proposed villainy against the dear little kitties, well, let's just say I can see a day when reading Beatrix Potter stories about Mittens, Tom Kitten, Moppets, and Mrs. Tabitha Twitchit is illegal.
If you think I jest, some radicals' have already proposed that Mother Earth would be better off if we first rid the world of species that eat other species before riding the world of ourselves.
Since many teachers and professors have been advocating radical animal rights for years, I suggest you arm yourself with knowledge about the difference between animal welfare and animal rights. Someone is bound to challenge you on that score.