The sole benefit to set against this impact is that the pet owner has a pet
There are many benefits to dog ownership.
Owning pets reduced the incidence of asthma, excema and other autoimmune diseases. Reducing the burden on the nhs. (Usual caveat that this is on a population level- out of a 1000 people there will be less ai disease. Those saying “i have a cat and asthma so you’re wrong”, individuals will still get ai disease, just less of them).
Pets reduce blood pressure. Get owners out for walks. Give the elderly and others something to be responsible for so they have daily structure.
In addition to all that I have a terrier who controls the local rat and mouse population better than any cat. You say “hunting behaviour” as if it’s a bad thing. He’s also a bloody good alarm system and door alert, even if we did have to train him to bark.
My friends dog has trained itself to alert to their dc’s hypogylcaemic attacks.
It isn’t about just having a cute animal to baby and provide unconditional love. Even my mother, in her 80’s now, who does actually think dog ownership is about unconditional love and cuddles, doesn’t realise that the dog is keeping her active and engaged- she’ll go to the shop for dog stuff and pick up milk etc, but she wouldn’t go just for her, she’d do without.