Islam is not a religion, its a political methodology of controlling other peoples and civilizations by force. Every nation has a right to defend its borders to keep its people safe within those borders. One way of changing countries is changing the Demographics, the culture, and the voters, to vote in One party, the Democrat party for total control over the people.
The Trojan Horse is that Islamic men of military age are crossing the borders and being allowed in with refugees to create terror and force the Majority to accept Islam's will under the guise of compassion for refugees. No nation has to accept such terms as to endanger their own people and cause hardship, and destruction!