What about the example of Portugal?
Decriminalazing drugs and letting addicts heal instead of putting them in jail cells
That is never going to work in the Philippines. The public is heavily against any such measure. If Duterte tries to legalize the drugs, then the people will remove him and throw him to prison. Decriminalizing drugs may work in western nations, but not in the Philippines.
Legalizing drugs and decriminalizing them isn't the same
Decriminalization means it's still illegal however with lesser penalites
Decriminalization or decriminalisation is the lessening of criminal penalties in relation to certain acts, perhaps retroactively, though perhaps regulated permits or fines might still apply (for contrast, see: legalization). The reverse process is criminalization.
Lesser penalties also mean that this could be taking advantage. People just continue to use and sell and kill each other because they arent afraid anymore of the penalties so obviously it becomes useless in the first place