It’s now undeniable: A war against England’s Jews is underway.

Mobs of antisemites are raining hellfire and savagery on my country’s peaceful, decent Jewish population.

Synagogues have been firebombed.

Jews have been murdered by radical Islamists.

And Wednesday brought a frenzied knifing attack on two visibly Jewish men in London.

This is a moral emergency.

For me, there is no doubt whatsoever: The left’s frothing demonization of Israel has endangered our Jewish compatriots.

If you want to know where the scourge of Israelophobia can lead, what horrors it can unleash, look no further than the United Kingdom.

Wednesday’s antisemitic atrocity was truly unnerving.

In Golders Green, a part of London with a large Jewish population, a man with a knife jabbed ferociously and randomly at two men — one in his 70s, the other in his 30s.

Both were seriously injured.

Their “crime”?…