I guess some cats love to piss on doors but I don’t think much if any property damage is being done by pet cats. I don’t think I have ever heard of a cat kiling a pet either.
Cats should be indoor only because they are murder hobos when it comes to wild birds and small animals.
Spreading diesease I can’t comment on. What diesease do cats kept as pets spread?
My neighbors cats used to wreck my herb garden and such. One of them once tried to rip through my window screen to get inside my house and get my pet parrot. I would have made that cat disappear if he had gotten in, and his owner would have never known what happened, and that would be their own fault
Can you imagine if dog owners just opened the door at night, and let their dogs fuck off to do whatever? They’d rightly be charged and have their pets taken away
Roaming pet cats scratch screen doors, destroy door mats, piss on doors, shit in gardens, kill wildlife for sport, fight other cats, catch diseases from other cats (pet and feral), get pregnant, get hit by cars, get mauled by dogs. All of these things happen even in countries where cats are “native”.
Find/replace cat/human. You are a clown to even deign to compare the negative environmental impact of a fucking cat to what we have done to everything we touch as a species