[user104658]

Originally Posted by Crimson Dynamo

Australia - more insects snakes and wildlife that can kill you than anywhere else in the world

Also Australia - keep your cat in at night in case it kills mice

It's actually because they kill the weird critters that only exist in Australia. Bit of an odd place really, biodiversity-wise. I'd let the cats take root, personally, but woke wildlife type folks would rather have the strange Aussie insects and rodents thrive than let the cats kill them.