I think people put too much weight behind the will they think others all possess. The only empathy they summon is to compare to an ideal, without truly understanding not many are beings possessing identical traits that make up the phenomenon of behavior.
No one is screaming at a schizophrenic to summon the willpower to stop hearing voices, but many certainly will do so to those fighting addictions or other ingrained behavior. This might seem like false equivalence, but they are both abnormal psychological traits, one happens to rely on the environment more than the other.
As another example, some animals will overfeed if you let them, and you can craft super obese animals genetically. No one is damning fat squirrels, screaming "If only they had the willpower to stop overfeeding!"
No one is screaming at a schizophrenic to summon the willpower to stop hearing voices, but many certainly will do so to those fighting addictions or other ingrained behavior. This might seem like false equivalence, but they are both abnormal psychological traits, one happens to rely on the environment more than the other.
As another example, some animals will overfeed if you let them, and you can craft super obese animals genetically. No one is damning fat squirrels, screaming "If only they had the willpower to stop overfeeding!"