[used:)]

The point is that if you open the door to the extermination of one group, that could open doors to others. In a perfect world, we would be able to easily tell the bad ones apart from the good ones and give them proper rehabilitation, but we don't. The best we have is the beaurocrasy to try and not leave anything unchecked and hope that the further innovations, technological, political, and philisophical, keep propelling humanity to a better place.

Anyway, I'm done arguing this. If I argued further, I'd just be repeating myself and barely any of my points have been argued against already. To each his own, I suppose.