I don't think it is naive at all. Drug decriminalization programs have success in the Netherlands and Portugal. Prohibition on drugs is similar to prohibition

I don't think it is naive at all. Drug decriminalization programs have success in the Netherlands and Portugal. Prohibition on drugs is similar to prohibition on alcohol in the US in that it is a source of funding for organized crime. The source of the violence in Mexico is drug cartels. Drug cartels take profit from the illegal drug trade. Eliminate the illegal drug trade and you will greatly reduce the funding for organized crime. Attacking their funding is the solution. Cartels would not be popular if they did not have money. If they cannot smuggle illegal drugs they will have lots less money.