Dude, I have personally witnessed dozens of snakes starve themselves to death, wild caught and captive bred both. Lots of animal species when kept in captivity can and will refuse food until they literally starve to death, google it...

There is no way you can say a hungry ball python will eat anything that moves if its hungry enough, because it is simply not true...

Any argument on your part about this will immediately be moot because you obviously are stating your mistaken belief and not a fact...