Humanity's values vs. American values

On September 23, U.S. President Donald Trump delivered a lengthy speech to the UN General Assembly, during which he blasted the UN as a failure. His remarks were a stark contrast from those delivered by Chinese Premier Li Qiang. Li hailed the UN as the world's "most universal, representative, and authoritative intergovernmental organization and plays an irreplaceable, key role in global governance." Given the sea of differences between the two major countries in their views and visions, how can we move forward in an inclusive and cooperative manner? What can members do to revitalize the UN to make sure it can still fulfill its purpose 80 years after its founding?