Abortion has nothing to do with infants.
It is literally impossible to abort an infant.
When someone aborts, they are either aborting an embryo or a fetus. The fetus is the stage of life directly before the infant stage. Infants are never and can never be aborted. An abortion is quite literally the removal of a fetus from a womb for any reason. Even miscarriages are called spontaneous abortions or natural abortions. Once a fetus breaches the birth canal and is born it is officially an infant and is protected under the law as a born citizen.
A fetus is not an infant. Just like a teenager is not a senior citizen, and just like an adolescent is not a toddler. They are two separate stages of mammalian life.