According to the article he wants to go back. He left because the cartels wanted to force him to work for them. We have the equivalent of Somalia on our southern border - complete with warlords. As long as the cartels continue to operate unopposed in Mexico (and now also in the US) Mexico will continue this way.
As long as the US demand for drugs and pedophilia continue, our country is at risk. The only way to stop this is to erase demand.