OK... then answer me this. How come when you take a wooden bat, hold it upright, and hit it as hard as you can with another identical bat, that the bat that is stationary always is the one to snap in half?

I think you might be making an incorrect assumption there. How often have you actually done this experiment? Are you sure that's really the result?

(Assuming the bats really are identical, which you can't do because of the nature of wood as a naturally-grown substance. And assuming that you strike them so that the both contact each other at the same "spot" on the bat and the same angle, which you can't do just by hand, you'd need some kind of a machine to do the test...)

I think that both bats would be damaged equally, and whichever one had a slightly weaker wood grain would be the one to fully snap (if at all).