You were the one who was making, IMO, an absurd claim, that she was going to lose votes. Sure she is going to lose votes from the 1% Libertarian crowd, but that will be more than made up with the votes from the mushy middle, who like it or not are concerned about teen drug abuse.
Now of course instead of knee jerkingly calling Liddy Dole names, you could write an e-mail stating where she is setting a bad precedent and that it is a state matter.
But IMO, you would rather call her names because you do not agree with her that drug abuse is a problem at all.