Most articles in "The Economist" are factual reports, but some articles are essays expressing opinion. The article titled "The Republicans: Time to fire him" is such an essay.
The essayists at "The Economist" consistently make the same, flawed assumption: Western culture and some non-Western culture (e.g., the culture of the Middle East) are equally good. That assumption is clearly false as the millions of refugees who flee from non-Western lands (e.g., the Middle East) to the European Union indicate.
The overwhelming majority of supporters of Donald Trump see the gradual decline of Western culture due to the nearly unrestricted flow of legal and illegal aliens into the United States. They worry about the future of Western society as elements of non-Western cultures begin appearing in it.
The essayists at "The Economist" claim that these aliens readily assimilate into Western society. That claim is a lie.
What is the mentality of immigrants who actually assimilate into Western society? Consider the father of Daniel Inouye. Before Daniel Inouye departed for the training camp of the U.S. Army, his father told him, "America has been good to us. It has given me two jobs. It has given you and your sisters and brothers education. We all love this country. Whatever you do, do not dishonor your country. Remember –- never dishonor your family. And if you must give your life, do so with honor."
Who is Daniel Inouye? He is the late senator from Hawaii. His attitude and the attitude of his father toward American society were common among many immigrants who came from Japan and Europe in the first half of the 20th century.
Such a pro-Western attitude does not exist among the millions of more recent immigrants and refugees from Mexico, the Middle East, etc.
Although Donald Trump is vulgar, he actually listens to the legitimate fears of millions of Americans who have been ignored by both the Democratic establishment and the Republican establishment. These fears include fears about the immigrants and the refugees from non-Western lands.