For those who demonize this move, the US decides its immigration policy.  It's called sovereignty.  Alien invaders do not supersede the rights of American citizens nor the sovereignty of the country.

"The United States has decided to end participation in the UN process to develop a Global Compact on Migration (GCM)," said Secretary of State Rex Tillerson in a statement on Sunday.

The New York Declaration for Refugees and Migrants is a 2016 agreement that the US had participated in and was part of a 2018 global compact that was being considered for adoption.

However, Tillerson said that the compact "contains a number of policy goals that are inconsistent with U.S. law and policy."

"While we will continue to engage on a number of fronts at the United Nations, in this case, we simply cannot in good faith support a process that could undermine the sovereign right of the United States to enforce our immigration laws and secure our borders," Tillerson added.

He then added that it "is the primary responsibility of sovereign states to help ensure that migration is safe, orderly, and legal."

US Ambassador to the UN Nikki Haley echoed Tillerson's words, saying that the US is “proud of our immigrant heritage and our long-standing moral leadership in providing support to migrant and refugee populations across the globe."

“But our decisions on immigration policies must always be made by American and Americans alone,” she added. “We will decide how to best control our borders and who will be allowed to enter our country. The global approach in the New York Declaration is simply not compatible with U.S. sovereignty.”

"I regret US decision to disengage from process leading to @UNglobal compact on migration," tweeted U.N. General Assembly President Miroslav Lajčák.

Spokesperson Brenden Varma said Lajčák regretted the decision to "disengage" saying, "The role of the United States in this process is critical as it has historically and generously welcomed people from all across the globe and remains home to the largest number of international migrants in the world."

"The President stresses that migration is a global phenomenon that demands a global response and that multilateralism remains the best way to address global challenges," he added.

Part of the Trump administration's promises were to strengthen the border and keep an eye on illegal immigration and suppress migration from Islamic terror states.

It's interesting, when Ron Paul ran for president in 2012, he was called an isolationist for his US first policies, and yet, here is Donald Trump breaking a lot of globalist ties, much of which needed to be broken and people are happy about it.  There's nothing isolationist about removing yourself from a dangerous and foolish policy, especially when those policies are being used against American law to overturn our sovereignty.

Still, some people think it is isolationist.

“The writing on the wall is that agreements made with the United States are not worth the paper on which they are written, because the current American president can — anytime, without due cause — call them into question without offering a realistic alternative,” U.S. correspondent Carsten von Nahmen said in an October op-ed for German public broadcaster Deutsche Welle, which was a reaction to the Iran deal.

“The president risks isolating the U.S. for the sake of his own fans — and his own ego,” the op-ed added.

It's not about ego.  It's about American sovereignty.

If the truth is known, the US is basically alone in the world when it comes to these global initiatives.  We pay the bulk of it, we enforce the bulk of it and we are the ones being bled while other countries and the UN wastes the money and resources we provide.