Killing Babies as a Means to Ensure Their Salvation?

If all babies automatically go to heaven, what’s so wrong with abortion? Or with the homicide of infants? But I repeat myself.

First - Let’s grant that it would be better for a person who has a significant risk of going to hell to instead die as an infant so as to ensure their salvation.  

But perhaps that’s not the state that we should assume infants to be in.  Perhaps all infants that die are instead destined to have been Christians whether or not they died in infancy - that is, perhaps all such infants that die are all destined to have been Christians if they had the chance to reach adulthood.  So we are not actually depriving these infants of a risk for hell - rather, we’re depriving them of a rich life that would have been in addition to their eternal destination in heaven.  It’s important to remember that our earthly lives matter and have value even if we’re headed to heaven.  Our lives matter.  Our jobs matter.  Our spouses matter.  Our loyalty to Christ this side of heaven matters.  We’ve deprived these infants of their decision to turn to Christ, to choose a spouse and have children, to grow in gifts for the kingdom and to increase in merit for their heavenly reward.  If we kill these premature “subjunctive Christians,” we deprive them of these goods.  Presumably at least *some* infants are this way, and we’re unable to tell which infants are which.  

Here’s an argument for thinking that there’s a significant chance that the above story is *true.*  Perhaps God has arranged history so that any and all infants who die in their infancy are people who *would have* chosen Christ in their maturity if they had been given a chance.  God’s motive for arranging history in such a way might be due to his desire to save infants and to keep heaven occupied by people who wish to be in the presence of Christ, and these subjunctive Christians are such citizens.

To murder a person so as to assure their salvation also violates the Pauline Principle, a fundamental principle of ethics which holds that we should not work evil so that good may result.  We need to keep in mind that to murder such innocents doesn’t just harm the innocent, but the murderer himself as well, by damaging his moral character and setting his intention on working harm to another person.  Such murderous intent, even if it results in a better state-of-affairs, transforms the perpetrator for the worse and corrupts their heart. 

Besides, we’re really not *sure* where infants end up.  There’s good probable reason to think that God grants them automatic access to heaven, but this is to a large extent speculation.  It could be that God rapidly matures deceased infants post-mortem and offers them a choice after their death.  Or it could be that they spend eternity in some lesser form of heaven, a type of Limbo.  We’re not sure.  We certainly shouldn’t be murdering people on the basis of a speculation.