Tobacco is an addictive product that on average hurts the people who use it as a negative utility. Almost every other product people buy has a positive utility. Tobacco, along with other drugs, is uniquely bad.
I don’t think Marijuana is likely to land you in the ED in quite the same way but the habitual smokers I’ve met tended to way underestimate how impaired they are by it and I wouldn’t be surprised if a lot of them drive and operate equipment while suffering those effects. Even the framing of Marijuana as a non-addictive substance seems to be a marketing framing.
How can it be "uniquely bad" if it's "along with other drugs"?