American concepts of abortion has no comparison in halacha. It doesn’t recognize instances where the baby can be considered a rotzeach for putting the mother’s life in danger. It also doesn’t differentiate between stillborns and ben kayamas, so that under some laws woman may have to carry a dead fetus until labor instead of getting a DNC. Rav Moshe ZT”L said in his teshuvos that we should not fight RvW because if it were overturned, woman may be denied access to life saving medical care.
The first result we would see is people performing the action under cloak and dagger leading to killing more women. Just like people like to say that lack of access to guns doesn’t prevent criminals from getting guns, so too lack of access to abortions doesn’t prevent women from getting them.