The point is that, all other factors being equal, a projectile with significantly more KE at impact can be expected to do more damage than the same projectile with significantly less KE.
The concept isn't hard to grasp - most 5 year old kids have a sense of it. Apparently some adults have a really tough time with it, though.
LOL, it's so simple a 5 year old can understand it!
Only problem is, it's demonstrably false.
I guess that means you're not as bright as the average 5 year-old.
