You then tried to claim that since the crips and bloods are shooting eachother up in LA that the gangs didn't go away.
Legalizing a drug will not make gang violence go away. Legalizing alcohol only moved the gangs into drugs.
Legalizing marijuana will not make the gang violence go away. They'll continue to deal hard drugs.
Legalize all recreational drugs and the gangs will deal prescription drugs, export drugs, and sell to minors. Violence remains.