This is only true if you don’t think women having full personhood is “not much”. Cheap, effective contraception came on the market around the same time that women started gaining legal rights, which is also when women were no longer forced into marriage and started to have independent careers of their own, whereas before the main option was motherhood, especially prior to social welfare systems supporting the elderly. It’s not a coincidence that we’re seeing backlash “men’s rights” movements now that a non-trivial fraction of men are learning that they aren’t worth settling for now that social pressure isn’t doing most of the work for them.
> to the extent that we now end the lives of 73 million unborn per year
This is overstating it considerably: it’s about 900k in the United States and 13M globally.