Nineteen-year-old activist Malala Yousafzai took to Facebook last week to share her thoughts on Trump's most recent executive order.
The new policy, which was signed on Friday, called to ban refugees and immigrants from seven Muslim-majority countries, including Iran, Iraq, Syria, Sudan, Libya, Yemen and Somalia.
"I am heartbroken that today President Trump is closing the door on children, mothers and fathers fleeing violence and war," the Nobel Prize laureate wrote. "I am heartbroken that America is turning its back on a proud history of welcoming refugees and immigrants — the people who helped build your country, ready to work hard in exchange for a fair chance at a new life."
I am heartbroken that Syrian refugee children, who have suffered through six years of war by no fault of their own, are singled-out for discrimination.
I am heartbroken for girls like my friend Zaynab, who fled wars in three countries — Somalia, Yemen and Egypt — before she was even 17. Two years ago she received a visa to come to the United States. She learned English, graduated high school and is now in college studying to be a human rights lawyer.
Zaynab was separated from her little sister when she fled unrest in Egypt. Today her hope of being reunited with her precious sister dims.
In this time of uncertainty and unrest around the world, I ask President Trump not to turn his back on the world’s most defenseless children and families."
The best-selling author, who now resides in the U.K., spoke out against Trump's promise to ban Muslims from the U.S. during his campaign, telling Britain's Channel 4 News, "If your intention is to stop terrorism, do not try to blame the whole population of Muslims for it because it cannot stop terrorism. It will radicalize more terrorists."
And Yousafzai definitely isn't alone in her thoughts.
Many world leaders have come together to speak out against what some are calling the "Muslim ban."
Turkish prime minister Binali Yildirim recently told reporters at a news conference, "Regional issues cannot be solved by closing the doors on people," and Prime Minister Justin Trudeau took to Twitter over the weekend to share a message of hope with refugees.
To those fleeing persecution, terror & war, Canadians will welcome you, regardless of your faith. Diversity is our strength #WelcomeToCanada
— Justin Trudeau (@JustinTrudeau) January 28, 2017