Actually, it’s not that hard for ordinary people to keep in mind two different ideas that the elites think they’ll find confusing — that most terrorists these days are Muslims, and that most Muslims are not terrorists. We keep similar things in mind every day. For example, we notice that most dangerously aggressive drivers are men, but also that most men are not dangerously aggressive drivers.

Still, dangerous drivers are dangerous. Americans are tired of hearing “Islam is a religion of peace” when for an uncomfortably large minority of Muslims these days it’s the opposite. So they have been flocking to Donald Trump when he calls for barring all Muslims from entering the U.S. And conservatives who in another year would upbraid Trump for flunking multiple litmus tests are defending him because he dares to utter forbidden truths.

Americans may be noticing as well how far political correctness has gone in Europe, especially Germany. European and American elites praised Chancellor Angela Merkel for promising to take in 1 million mostly Muslim, mostly male refugees. Why can’t America be so generous?…

The hard question is how far tolerant societies should tolerate the intolerant. Societies value freedom of expression, but not when those include freedom to assault and kill. Societies are ready to welcome others, but not those whose values are discordant with the freedoms they strive to uphold.