Your errors are many.
- Jesus died. That compares to what you are seeing of the saints and saying they do not rule the world. But His death was not a failure resulting in not ruling the world-- but rather, He has overcome the world. If you deny this--you rob Christ of His victory, which by the standard that you justify saying that the saints do not rule the world, you also speak against Him who is in them.
- You are focused on the world, and therefore that is all you see. Those killings and waring are not what Jesus overcame-- It is still appointed once for men to die, even to the end of the times of the gentiles.
- You seem to have the world confused with the kingdom.
- But, no, I have explained what you have confused. And it is not you appointed me, nor are you able to take it from me.
Amen Christians who always take a literal meaning over a symbolic interpretation take away from the message which was meant to be given.