Britain must wake up to the reality of Islamist terror in its midst

The vile attack on a Manchester synagogue on the holiest day of the Jewish calendar should be a blaring wake-up call to the United Kingdom that Islamist extremism is out of hand.

Antizionists screaming “Globalize the Intifada!” have spent the last two years insisting that their fervid calls for the elimination of Israel have nothing to do with antisemitism — indeed, that it’s offensive to suggest otherwise.

Their protests, you see, are motivated solely by humanitarian concerns.

But if any bright line ever divided principled opposition to the war in Gaza from outright hatred of Jews, the “Free Free Palestine” crowd is doing a good job of erasing it.

Within hours of Jihad al-Shamie’s (yes, that’s really the alleged terrorist’s name) murderous assault, violent protests broke out acr