This is simply not true and this 'meme' is really harmful. A legal market would only encourage consumption and serve as a cover for the black market.
I can see that there is logic to both cases. Saying one side is "simply not true" doesn't make your case. Is there any firm evidence either way.
The prohibition created a robust black market which all but disappeared when alcohol production came back into the light by legal means. The same logic should hold true for ivory through farming or artificial production (see several comments to this point above).
Your turn.
http://www.bisbeesconservationfund.org/conservation/savether...