"...As in other areas of foreign policy and national security, Trump has completely reversed the policies of his predecessor Barack Obama. From the beginning of his tenure in the White House, Trump has shown little respect for the Security Council, the UN General Assembly, and several other UN and international agencies. He views them as highly politicized, corrupt, ineffective, and anti-American.
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In his speech to the 2018 UN General Assembly (his second to the body), Trump clarified a doctrine he often repeated during the 2016 presidential campaign and has continued to emphasize since becoming president: The US is a sovereign state and will determine its functions in world affairs solely on the basis of its national interests. 'America is governed by Americans,' he said. 'We reject the ideology of globalism and accept the doctrine of patriotism.'
Trump has consistently applied this doctrine to multiple international organizations and processes. When the US decided to leave the UN Human Rights Council (UNHRC), US Secretary of State Mike Pompeo explained, 'Too many commitments have gone unfulfilled. President Trump wants to move the ball forward. From day one he has called out institutions or countries who say one thing and do another, and that's precisely the problem at the Human Rights Council.'
In June 2018, the US left the UNHRC. Ambassador Haley said that for almost a year, she had demanded reforms to the Council's operations to no avail. 'Regrettably,' she said, 'it is now clear that our call for reform was not heeded. Human rights abusers continue to serve on, and be elected to, the Council.'...
In October 2017, the US withdrew from UNESCO. The US is now an 'observer state,' with no dues payable and making no contribution to the running of the organization... Palestine has not been granted full membership at the UN, but did receive full member status at UNESCO. This violates a congressional law that bans US funding of any international organization that recognizes Palestinian statehood in the absence of a peace agreement with Israel.
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The ICC, the Hague-based world court, was Trump's next target... In September 2018, he called the Court 'unaccountable' and 'outright dangerous' to the US, Israel, and other allies. 'For all intents and purposes, the ICC is already dead to us,' he told the conservative Federalist Society in Washington. 'If the Court comes after us, Israel, or other US allies, we will not sit quietly.' Bolton threatened the ICC with sanctions..."