This Labour government must be brave enough to stand up for the bill and ensure a legacy of empathy and personal freedom

The time has come for a defining moment early in a Labour era that has so far lacked definition. This is the week a Labour parliament can make its mark in the long campaign for personal freedoms over birth, sex, life and death. If not, if MPs prove pusillanimous in the face of loud but thinly supported objections backed by organised religion, they will ignore the opinion of a public that is strongly in favour: the British social attitudes survey’s first polling in 1983 found 77% of people in favour of assisted dying, and that figure has hardly varied since then. After campaigning all my life on this, I feel: if not now, then probably not in my lifetime.

Every Labour government leaves new freedoms and laws of human empathy in its wake, things traditionally blocked by Conservative majorities. The Blair government’s civil partnerships were a jubilant breakthrough, along with equalising the age of consent. The Wilson government abolished cruelties and repressions by decriminalising abortion and homosexuality, ending capital and corporal punishment, bringing freedom to divorce and more. Millions of lives were changed for ever in profound ways.

Polly Toynbee is a Guardian columnist