Marijuana effects motor skills. The argument that tobacco should be illegal if weed is is dumb. If you think weed should be legal that is one thing, but to say tobacco should be illegal if weed is is just dumb. Like. Really. Dumb. I think weed should be legal btw, and where I live it is, for medicinal use, which getting your "green card" is super easy to do.
It's really annoying when the only argument someone has is that it's illegal. Anyone who says that obviously hasn't tried it and just doesn't know what else to say. I definitely don't believe tobacco should illegal though.
I think a better argument is alcohol to weed. What impairs driving more? Tons of better things to compare there..