“That inequity in the application of the death penalty requires its abolition is an argument that will be made only by people who do not like it for other reasons. The inequity argument is a pretext, not a reason. Between an inequitable death penalty and no death penalty, I would prefer an inequitable death penalty, just as I would prefer an inequitable tax system to no tax system, and inequitable policing to no policing. I say this because I think it likely that executions deter murders, and it is clear that a majority of Americans-white and black-think that justice requires executions for the most heinous crimes.”