It is when absolute retards do it for sure. See the smashed and slammed dogs thread here. But in general, domesticated animals are awesome if you do it right.
Domestication rules. Dogs are so great they can be separated from all human contact for thousands of years and then when meeting humans again, they just become tame.
This happened in Australia where for thousands of years Abbos feared and hated the dingo and then as soon as white people showed up they tamed the dingo easily and bred them into the Australian Cattle Dog.
Domestication is good. Breeding as a whole has no doubt been more disastrous for dogs than most species however. Those unfortunate toad looking mini pitbulls in that thread in Community Watch is proof of that.