US Responsible for Mexico Drug Violence?

Sec. Clinton's admonishment that the US's drug habit/demand makes us somewhat responsible for the drug cartel violence in Mexico, has some validity.

 

After all, if had not been for Pres. Clinton staining that blue dress, it is very unlikely that Hillary would have become Senator or Secretary of State.  Therefore, Pres. Clinton like the US drug habit/demand, bears responsibility for a negative outcome.