Abortion glossary :: Pro-slavery
The "pro-slavery" characteristic is entailed by the anti-choice position because when a pregnant person who doesn't want to continue to be pregnant is prohibited from choosing to get an abortion (to terminate their preognancy), then they are effectively a slave to gestation.
Debating strategy
Human slavery is a violation of human rights and freedoms, and it's unethical as well as being illegal in nearly all modern, civilized nations.
See also