That logic doesn’t flow, though. You need to compare number of current illegal users vs number of users before it was illegal.
Have you heard of the US prohibition on alcohol? It’s a pretty famous counterexample to your argument showing that it absolutely does not reduce usage.
Trying to pay rent these days... (lemmy.world)
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the FDA is considering a ban on menthol cigarette sales (www.verifythis.com)
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