They will themselves enter the wombs of other mothers and be aborted again and again. Many people argue in favor of abortions because they facilitate their desire for unrestricted sex. They want sex without responsibility, but that is not pleasing to God. That will not help one to return to the Garden of Eden, the kingdom of God. The Torah's laws are meant to guide man in practical day to day life so that he can ultimately qualify himself to realize God.
Materialists think that sex is required to be happy.
They have no idea that one can learn to be satisfied without sex life. If a person, man or woman, had no interest in sex then abortions would be unnecessary. They are unable to do that. One reason is to facilitate the variegated, animalistic desires of those persons who are addicted to sex enjoyment. The only activities of the animals are eating, sleeping, mating, and defending.