There is no hierarchy of evils in this case. Anything you do to enable one class of humans to claim ownership over another class of humans is absolute evil, you

There is no hierarchy of evils in this case. Anything you do to enable one class of humans to claim ownership over another class of humans is absolute evil, you don't make it better or worse by giving the dominant class a more efficient way to let their "pets" run off the leash for a while, for as long as it pleases the "owners". To provide a platform for this kind of behaviour to be modernized, and hence normalized, is to be complicit in unspeakable evil that belongs only in dystopian sci-fi novels.