Are traditionalist-orthodox Christians contented Not To Know how salvation works for the massive majority of (outside of the church) foetuses, children, non-Christians?

I am much more confident of the goodness of God the Creator; than I am of any theology; such that it seems obvious that Christians ought to fit theology around the goodness of God, and not vice versa. 

I am also much more confident that Jesus was the Son of God, God was his Father, spoke with God person to person; and taught that we can and do know God by knowing Jesus - than I am confident about metaphysical assumptions regarding the nature and operations of "the Trinity". 

From this perspective I perceive that most Christian theologians have always seen things the other way around to myself. 

They insist on trying (and failing) to explain the goodness of God in terms of (what seem to be prior and extra-Christian concepts of) monotheistic oneness, and dogmas concerning the "omni" attributes of the Creator.  

And consequently, they insist upon their inference of the utter unbridgeable difference between God and Men, and the unknowable nature of so infinitely-different a being as their God is from ourselves. 

This, I believe, lies behind the problem of the possibility of salvation "outside of the church" - which has apparently plagued thoughtful orthodox Christians as far back as there are records, and still does. 

On the one hand; strict orthodox-mainstream Christian church theology typically excludes the possibility of salvation from those outside of the church, and/or those who die unrepentant (e.g. the Protestant idea of "as the tree falls, there it shall lie" - meaning it is the state of mind at the moment of death that determines our eternal future).  

Both of these ideas seem to imply that the mass majority of humankind through history and still today are doomed to damnation. 

Yet those who assert salvation-for-all ("universalists") deny the reality of freedom, of agency, of choice* - and/or make this mortal life a needless hazard to salvation. 

Caught between the monstrous idea that most of humankind are doomed to damnation by an inscrutable God (He must be inscrutable, because he is Not  understandably good and loving) - and the robotic- determinism of universal salvation - most Christians will affect ignorance.  

They will say some version of "we do not know, because we have not been told" (meaning told dogmatically by their church, or the Bible as interpreted by their church) what happens to that (I say it again!) massive majority of Men throughout history who died in the womb, or as young children, or in places and times when there was no Christian church. 

This affectation of ignorance concerning such a colossal question strikes me a grotesque if sincere, and wicked if insincere. 

How could so many self-identified Christians be contented Not to know what happens to most people alive or who ever have lived?

Are they really only concerned about the magic circle of people within their own chosen church or denomination? 

My point is that this is an extremely important matter, and Christians ought not to allow themselves to profess ignorance on such a vital matter. 

They need (are duty-bound) to find a coherent answer that accords with their fundamental understanding God, Jesus and what it is to be saved. 

And this further means, that they ought carefully to examine whatever answer they come-up-with and commit-to; to ensure that their answer is essentially coherent with what needs to be affirmed for Christians.

Because... most of what most churches/ denominations say on this extremely important subject is very obviously incoherent. 

* Salvation must freely be chosen, it is opt-in. This means that the Mormon idea that all children before eight years old, the year from which they regard baptism as valid, will be saved - is also incoherent.