Good intentions pave the road to hell! Nothing good Duterte will not do such methods. Now he had turned away from the entire civilized world. The only friends he has are China and Russia. There are dictators like him. Ask the citizens of those countries much they like their rulers.
It is true that Duterte has managed to strengthen the foreign relations of Philippines, by bringing Russia and China on his side. But at the same time, the Western nations remain as Philippines' allies. Donald Trump has shown appreciation towards Duterte.