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<p>On what economic assumptions do you base that assertion? Making something more readily available (for example, by legalizing a formerly illegal or restricted substance) nearly always causes prices to fall. Falling prices reduce the attraction of that market to criminal elements, who can no longer compete with legitimate producers. It doesn’t follow that legalization here would have any effect in Mexico other than to dry up their largest potential market.</p>
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<p>Understand that nicotine is not a “drug” because the FDA has chosen not to call it a drug. It is no less a bioactive chemical than THC and other cannabinoids, the active compounds in marijuana. Nicotine, alcohol, and caffeine are all legal drugs with some addictive potential.</p>
<p>To view it another way: If heroin had never been outlawed, you might have written, “While heroin is addictive, it’s not considered a drug.” The semantics of which substances we choose to call drugs is unrelated to whether they’re addictive or non-addictive, legal or illegal.</p>