Please stop using their language. Do not use the 'A' word: Call the debate one of Forced Childbearing. Use 'termination' and 'prevention' as the description for procedures to stop unwanted childbearing.
Forced Childbearing is only one among many ways to use someone's body, against their will. R pe is a great favourite, particularly within the home.
The resulting impregnation of women and girl children doesn't matter much, in the traditional mindsets, and therefore legislation, made mainly by men , for men. Males get the 'fun' and the 'sub-humans', i.e. females, get the enforced childbearing. Then, the females can be left to worry about feeding and caring for these unwanted burdens. Men can leave.
Enslavement of the whole person is another tradition. (Again, for males, keeping women and children servile is popular, easy and convenient) This has the backing of many religions. Some religious leaders and texts also include approval of keeping slaves, if they are from the wrong religion.
And now, people could be captured to have their organs forcibly removed, when a rich person wants a living donor.... Why not, if humans don't have any right to decide what happens to their own live bodies?
Where is the difference between those things and forced childbearing?
Incidentally, it is time to allow people a right to decide what happens to their own dead bodies, too.... Paradoxically, since donor consent became the default assumption, the supply of bodies/ organs has fallen. (Spiteful thwarting of the relative's last wish, presumably)