September 2, 2024 - 7:00pm

Donald Trump may be wrong about many things, but he is spot on in sounding the alarm over declining birth rates. In an interview last week, the Republican presidential nominee promised funded access to IVF for all US citizens, saying: “we want more babies, to put it nicely.”

Sceptics may be tempted to think that Trump’s offer has more to do with winning back liberal female voters than addressing America’s baby bust. But whether or not his commitment to free IVF is merely a political ploy, Trump is correct that the US — and indeed nearly all Western nations — needs more babies.

Across the world, birth rates are falling. Most rich countries — and increasing numbers of poor ones — have total fertility rates (TFRs) well below the replacement rate of 2.1 children per woman. In the US, the TFR has fallen from 2.5 in 1970 to just 1.67 today, meaning each generation will be 20% smaller than the last. America is still in a considerably healthier position than many industrialised nations: South Korea has a TFR of just 0.7. This means too few young people coming into the workplace to replace those who retire, and too few taxpayers to fund pensions and healthcare. Unless we reverse the decline, the West is facing a future of poverty, stagnation and labour shortages. For conservatives, the lack of children is more than just an economic tragedy: the collapse in family formation weakens the very foundations of civilisation, eroding the capacity to pass on history, culture and faith to future generations.

With such a bleak outlook, efforts by governments to help people have children should be applauded. Importantly, most young women do still want to become mothers, so fertility-boosting policies should be seen as an attempt to remove barriers to conception rather than a sinister plot to pressure people to breed. The Hungarian government has taken a notoriously intensive approach to family policy, but many other Western nations are waking up to the problem. Earlier this year, for example, French President Emmanuel Macron announced a programme of “demographic re-armament”.

Trump is no outlier in seeking — genuinely or not — to increase America’s birth rate. But although his IVF offer will be a relief to couples struggling with infertility, and may be welcomed by some conservatives as a “pro-family” policy, it will make little difference to overall fertility rates. There are many social and economic reasons why such a large proportion of women now never become mothers. But a significant factor is that many women are simply leaving it too late, waiting until after the age of 35 when the chances of conceiving are on the decline.

Crucially, IVF has low success rates for women in this age group; even if treatments were more widely available, the impact on birth rates would be marginal. In pronatalist Israel, the only Western nation with an above-replacement TFR and where fertility treatment is free for all, just 5% of babies are born through IVF. Even in the highly unlikely event that the US — where 2% of births are currently through IVF — were to attain Israeli levels of assisted conceptions, the effect on the American birth rate would be negligible.

It is even possible that promoting IVF could decrease birth rates. The public has a poor understanding of fertility and fertility treatments, and far too many assume that reproductive technologies are effective insurance policies against childlessness. Egg freezing has soared as cynical advertising preys on the fears of young women, but sadly these treatments are highly unlikely to result in babies. The greater the availability of fertility treatments, the stronger the false sense of security, the later women leave it to have children and the less likely they are to conceive, whether naturally or through IVF.

Conservatives should welcome efforts to encourage family formation. But IVF will not save the US — or anywhere else — from collapsing birth rates. The solution is far more complicated but at the very least will involve better fertility education, much more financial support for families, and higher status for parents. There is certainly a compassionate case for more widely available IVF, but reversing demographic decline is going to take a lot more ambition.


Miriam Cates was MP for Penistone and Stockbridge between 2019-24.