Possession and/or use of a substance is a crime when a law makes possession or use of that substance illegal. Alcohol was illegal when possession and/or use was made illegal by a law prohibiting that substance.Alcohol is legal.
Illicit drugs are not.
Pot is the same as heroin in the eyes of blind justice.
"Illicit" means "unlawful".
So, if you remove marijuana from the list of "illicit" drugs it is as legally acceptable as alcohol.
Therefore, small amounts of marijuana (and heroin and cocaine) are NOT "illicit" according to the new law in Mexico.
My personal stand? I believe that marijuana is on the same level as alcohol. Heroin and cocaine are not. Marijuana has not been proven to be a "gateway drug". That label is propaganda.