I found an article from 2019….
Australia plans to kill millions of feral cats by airdropping sausages laced with poison
“The government wants to kill 2 million cats by 2020… The Australian government is airdropping poisonous sausages across thousands of hectares of land in an effort to kill millions of feral cats, according to reports… Cats are also trapped and shot by government officials... The cats die within 15 minutes after eating the sausages made with kangaroo meat, chicken fat, herbs, spices and the poison, 1080, the New York Times reported.”
” And last year, Omaui, a small coastal town in the South Island, considered banning people from owning cats – although it has since backtracked on this plan.”
I don’t know what the answer is…in a perfect world no animals would die at all on both sides of the equation