Did you really just write "Imprudent and illegal use of email is only a mistake?" My lying eyes must be deceiving me! Not only did you just write that illegal acts are "mistakes," but you also placed political opinions over the legality of actions. You effectively declared that political rhetoric is worse than actual illegal activity.
Go commit a crime 1/100th of the scale of HRC's and see if the uncaring justice system allows you to get away with it as a "mistake."
Pragmatically, political "rhetoric" is more important than crimes. For example, which candidate is more likely to maintain a good relationship between USA and Mexico? Not the one who wants Mexico to pay for a great wall. It doesn't depend on how illegally and immorally they behaved in the past.
Go commit a crime 1/100th of the scale of HRC's and see if the uncaring justice system allows you to get away with it as a "mistake."