Horse slaughter is a predatory, inhumane business ....
While cow slaughter, pig slaughter, chicken slaughter and even fishing are totally fine. Breeding turkeys that break their own legs trying to walk, dogs that can't breathe without surgical intervention. Chickens that grow far too fast and never see the light of day, raised for nuggets. Cows that will die in horrible agony if they are not milked twice a day. Eating fetuses - what else are eggs? Or infants - most people like the odd lamb chop. How about plants that can't even breed without human help? Is that a predatory, inhumane business? Or cutting flowers, thus preventing the plant from doing the one thing it is meant to - reproducing.
Emotion, attempting to trump fact again. Sure, horses are graceful and majestic. Got one of my own, though he is getting a bit old to ride now. Stubborn sod - we always had an agreement. He would try to kill me while being ridden and I would try not to be killed. Then we'd get back to the stables, he'd get groomed with little sighs of pleasure and we'd talk. Doesn't make him any less edible.