Abortion supporters have the same mentality of those who support slavery. Blacks could be enslaved because they have no soul.
Similarly women have been abused throughout history under the idea that women do not have a soul, or have something like a half soul.
Similarly millions of animals are murdered mercilessly because of this same mentality, that the animals do not have a soul.
So similarly people people of the same mentality see an unborn child as a soulless being, unworthy of rights and protection.
It is just a Nigger/ a human fertilized egg/ beef /a Jew so it can be killed.
Śrīmad Bhāgavatam 3.31.1
striyāḥ praviṣṭa udaraṁ
The Personality of Godhead said: Under the supervision of the Supreme Lord and according to the result of his work, the living entity, the soul, is made to enter into the womb of a woman through the particle of male semen to assume a particular type of body.