The correct answer to this open question is the following.
Prohibition generated more problems than the solutions that were originally planned.
The lesson was a tough one to learn, and teh American people hope these mistakes won't repeat again.
The federal government was so naive in thinking that Prohibition was the ideal solution. Probably, it was the easy way for it to accept the demands of teh Christian society of the time.
Nevertheless, the results were completely different. Prohibition fostered mafia in America. Licor started to sold in illegal ways, in illegal places, and this created an underground industry that produced millions of dollars behind legality.
Many clans were formed, criminals sprouted, and their leaders began to control important parts of large cities. Police had to intervene but the cost was high.
We hope that the government and society had learned the lesson. Prohibition, per se, has never been a real solution.