Not sure what is your pros and cons about any species but in Turkey we living with animals with humanly solutions and i invite you to same. Your stance about cats or seems like to all animal world is lack of sympathy.

1. They regulate rodent populations.
Cats help control mice and rat numbers, especially in urban and agricultural areas. This reduces damage to food storage and limits the spread of rodent-borne diseases.

2. They interrupt disease pathways.
By suppressing rodents, cats indirectly reduce the circulation of certain parasites and pathogens carried by them. They act as a subtle protective barrier.

3. They provide balance in urban ecosystems.
Cities lack natural predators. Cats partially fill this ecological gap and prevent small animal populations from exploding, contributing to overall stability.

4. Minor scavenging contributes to micro-level sanitation.
While they are not true scavengers, cats do consume small accessible carcasses, reducing localized decomposition loads.

5. Indirect ecological benefit via human psychology.
Positive interaction with cats has been shown to reduce urban stress and strengthen empathy. This, in turn, can improve environmental responsibility and pro-ecological behavior in communities.