Yes i agree we should not compare with sugar as it is out of the subject, not even the analogy. Theory is theory and that theory does not hold. As in real life it is different which the smoker and long distance race shows. On paper he would not win, but he did. So theories are useless as they cant be generalized. This is why the saints say experience and not to go for theory.
Even a smoker could get buddha hood. The mind however will tell different.
And for the info im not a smoker and never was if that recently crossed your mind.