Legalization: Would legal California marijuana really hurt the cartels?

Yes, there is another interpretation to the Rand report. 

Would legal California marijuana really hurt the cartels? � Mexico Institute: "White House drug czar Gil Kerlikowke is hailing the release of a new Rand report which finds that if Californians vote to legalize marijuana on Nov. 2, it won’t put much of a dent in the profits of Mexican drug cartels:


There’s a big 'however' though: 'However, the impact of legalization on Mexican drug trafficking organizations’ bottom line could be magnified if marijuana cultivated in California is smuggled into other states, according to the study.' 


With this caveat, couldn’t the report be viewed less as a case against legalization in California than an argument for extending it nationwide?"