Republicans are hardly a monolithic entity. Some may care about ending lives, but only ones that have nor been convicted of a crime. Others may care about ending lives, but not as much as they care about their right to firearms. Others view it as a religious issue. Others want women to be broodmares.
For the record, all of them are fundamentally disrespecting another person’s autonomy, but they can have different reasons for doing so or priorities when doing so.