President Donald Trump has issued a new executive order targeting branches of the Muslim Brotherhood, marking a significant shift in how Western governments address Islamist networks. While other Western nations have largely ignored or appeased these groups, the United States is now taking steps to identify and sanction organizations accused of fueling radicalization and antisemitism. The article argues that years of unchecked multiculturalism have allowed Islamist organizations to embed themselves in Western societies, resulting in increased hostility toward Jews and other minorities. The executive order is presented as a critical move to counter these networks and prevent the societal fragmentation seen in Europe, Canada, and Australia. The author warns that if the United States fails to act decisively, it risks repeating the mistakes of its allies, with dire consequences for its social fabric.