No. Because he posed one of the greatest philosophical arguments/questions I have ever heard. As a student of philosophy I cannot kill those that make me questions the fundamentals of the world unless they are truly a threat to it.
"What is better - to be born good, or to overcome your evil nature through great effort?"
―Paarthurnax
The Blades forgot their duty in lieu of old hates, never overcoming their nature and it blinds them to potential allies. Also, to kill and hate someone simply because they belong to a race that had done horrific acts also hits a little to close to home.