Exactly. They are very bad drugs.
But what drug can you name that is legal and has the same side effects? Dependency, Addictiveness, Liver/Kidney/Heart Damage? Alcohol.
All I am arguing here is that taking x has the same danger level as taking weed. Actually X is the most commonly used drug behind weed. Are there dangers if you take to much? Of course but it is still safer and better for you than alcohol.