The Dutch would disagree with you.
Weren't the Dutch the one's who started the slave trade to America?
That aside, just because the Dutch would disagree, doesn't make the Dutch correct. Pol Pot disagreed with allowing millions of people to live.
But, lest we digress; Smoke of any form is bad for the human lungs... Period. Alcohol, in moderation isn't necessarily bad for anything. And in some cases, is a good medicinal tool.
There are types of Marijuana that will impair you far more rapidly than any form of alcohol (barring the consumption of an alcohol of a potency that will poison you immediately), and the more potent Marijuana is (most likely) the Marijuana that will make it to the market place.