Doesn't aggression imply some sort of force, and isn't force measured in Newtons, or more specifically kg*m/s^2.

If the aggression isn't measured in those units, what units of force are we going to use?

It certainly couldn't be just the opinion of the day, should it? That could make for some serious confusion I would think.

Last I checked, we had this force problem solved about 300+ years ago. Why are we trying to redefine it now? Did I just wake up and the world of physics change on me?

This must be like some overnight Jonny-Appleseed-Alice-in-Wonderland-Wizard-of-Oz "awakening" I'm having here. Very confusing problem it seems.