He just kill all people who are involved in drug. You don't solve problems just to murder all who don't fit you ideally country in his eyes. A country without drugs don't exist it will always be part of the world.
You couldn't say that DU30 is the one who's killing drug addicts. Only 50% of those are proven that was killed during the drug raid. As far as i know as i quote it " Suspects tend to fight so the police operative should defend their self which is not a crime". It as also alleged that most of the extrajudicial killings were made by syndicates.
Duterte is the greatest president of all time. He creates vision in every steps he make. He know his enemies. He has a good heart with a fashion to change his country for the better. The world leader consider him the greatest world leader of all time. God protect him all the way.