The science is very clear and saying that alcohol is like pot (a falsehood) and then pretending that two wrongs make a right is counterproductive. The brain imaging technology is very clear.
I never claimed that the neurological and other medical effects of marijuana were similar to those of alcohol.
Heck, I never even used the word "like!"
I have compared the relative hazardousness of the two. One could likewise the relative dangers (to health, well-being, or societal stability) of tightrope-walking and smoking banana peels; that is legitimate. My point is that a substance which people voluntarily ingest should not be illegal merely because it is "bad." Rather, YOUR standpoint that of a nanny-state mentality.