Many people agree that, if marijuana is less dangerous than alcohol and smoking (two legalized substances), marijuana ought to be legalized as well. But given that there are plenty of other drugs both less and more dangerous than alcohol, it seems using alcohol as a an arbitrary cutoff point is rather random.
In my opinion, its worth fleshing out our reasoning a bit.
Given there are plenty of arguments for legalizing the recreational use of relatively "safe" drugs, at what precise level of danger do you think drugs should be banned by the government? Should ALL drugs be prohibited/legalized? What other cutoff point would you propose?
I think it is a slippery slope to insinuate that all drugs should be prohibited. Certain ones, like alcohol, are ingrained (pun intended) in American culture. As we look back at the 1920s we know that prohibition was a massive failure, it actually caused harm. Therefore, outright banning substances is not a viable option. I think that working towards a society where people feel secure and happy will make them less likely to do drugs, even more benign ones like Marijuana.