British MPs want the UK to apologize for the Balfour Declaration — the 1917 promise of a Jewish homeland.

But there's another British document about Palestine that actually needs an apology. One that killed hundreds of thousands of people.

The White Paper of 1939 capped Jewish immigration to Palestine at 75,000 — just as the Holocaust began — and kept those restrictions in place until 1948. Churchill called it a betrayal. Lloyd George called it "an act of perfidy." The League of Nations said it violated Britain's own mandatory obligations.

790 Jewish refugees drowned on the SS Struma after Britain refused them entry. Holocaust survivors were imprisoned in British detention camps on Cyprus. Tens of thousands of Jewish children were denied visas explicitly so as not to offend Arab opinion.

MPs want Britain to apologize for trying to save Jews. It has never apologized for helping to doom them.