Anybody that does not know that killing the unborn child is murder and therefore vile sin - is not Christian.
Perhaps what is really wrong here is education of church goers who claim to be Christian but are taught religious simplism. The church of the nominal.
Many today go to church on Sunday and don't pray or read Scripture yet they are convinced that is all that is required of them. They tend to be convinced by the worldly convictions of the fallen world.