The Dog is a freak of nature.
A complete degradation of the Wolf. Owned only by the selfish and controlling. No one who has a Dog appreciates a Dog for its nature. The Dog only exists as a biological tool for service and it is usually just treated either an accessory, a weapon, a sex toy, and/or a devotee.
They are an engineered species of animal to the point that they no longer remember how really to be one on their own and cannot survive efficiently outside of human settlements.

They are a fully enslaved species of invented animal and none are more cruel than those who decide another species of animal should be a first line of defense against a tool using ape.

Dogs are terrible animals and Dog owners are terrible people.