I actually had this argument once with a leather Birkenstock-wearing PETAphile. Here's how it is, sister.
The eggs we eat are unfertilized ova, full of protein and possibilities but nary a baby chicken in sight.
The fetuses that are aborted are fertilized ova, aka actual real live human babies, full of human possibilities.
Breakfast eggs, unfertilized, no babies.
Aborted fetuses, fertilized, babies.
Now go get a couple of Egg McMuffins and shut the fuck up.