Human behaviour is really the laws of physics at play
How we behave is determined by our genetic design, our experiences in life up to this moment, the position of all the stars in the universe exerting gravitational forces on us in every moment, the movement of the atoms in our brains
There is an undeniable feeling of free will in every moment
But this is a world of space, time and causality
Mother Theresa didn't go around slapping babies, because she wasn't designed and conditioned that way
Hitler didn't go around building orphanages, because he wasn't designed and conditioned that way
People don't wake up out of the blue and decide to slap babies
It's a result of the 14 billion years of circumstance preceding that moment
If there was no solar system with Earth in it, there would be no one slapping babies
It's all intricately interconnected, tacky as it may sound