...But don't ask me about my metaphysical assumptions
(The above being the argumentative strategy of all churches)
The generations-long, inexorable corruption, apostasy and (remember 2020) self-destructive failure of Christian churches has nothing to do with me!* but is there for all capable of seeing it.
*(I am but the bearer of bad news; and one who seeks to proceed on that basis - rather than on the basis of the delusional and dishonest optimism all-too-characteristic of those whose Christianity is inextricable from some particular church.)
And yet there is a sometimes-palpable metaphysical hunger among the mass majority of not-religious people; who realize that mainstream materialist totalitarianism offers no meaning, no purpose; and zero basis for ethics, beauty or truth.
Metaphysics is the discourse concerning ultimate, fundamental reality. In other words metaphysics seeks to make explicit and examine our deepest convictions and assumptions concerning the way that things are.
The metaphysics of dominating mainstream modern materialism; explicitly regards ultimate reality as dead (unalive), ruled by blind causation and undirected randomness - there is no direction to it, no reason behind it, it has no values; therefore nothing is better or worse than anything else...
The only basis for preference and choice is our own temporary, subjective, psychological state; which itself has neither purpose, nor meaning - and merely whatever happens-to-be, at present.
The official non-explanation of life, the universe, and everything is: Things Just Are. Nothing can coherently be said about any of it.
There is a hierarchy of explanation that runs from fundamental, primary and metaphysical assumptions to make sense of the secondary, surface and observational aspects of life.
Thus: we derive our meanings and purposes from our metaphysical assumptions, and not from our "factual" observations - indeed, we cannot even know what counts as "a fact" without prior assumptions (theories) to tell us.
Consequently, of themselves, our perceptions mean nothing, imply nothing and are undistinguishable - since the world does not come to us divided into different objects, nor do the supposed causes acting on such objects come to us divided into types.
It is by our interaction with the world (our "participation" with creation) that what would otherwise be incoherent "noise" is instead known as having structure, meaning, purpose.
A perceived world without primary assumptions - without the metaphysical and structural basis of reality; well, it is hardly even imaginable - but might be pictured as a booming, buzzing, fuzzy, incoherent, literal-chaos.
It might be supposed that the churches would benefit from this vacuum of purpose/ meaning, this craving for fundamental values; but the churches eschew the deep level of metaphysical assumptions; instead trying to reason from current preferences, agreed observations, accepted facts...
Each church hoping to convince that its particular "package" of administration/ rituals/ scriptures/ symbols/ prayers etc; offers a better psychological or socio-political outcome, or a better (perhaps the only) chance of some kind of life beyond death.
While churches will often critique mainstream materialism, and expose its vacuity; what the churches fail to do, is go back and down to the deepest level of their own fundamental assumptions.
The churches Will Not make explicit and examine their own assumptions.
The Christian churches' attempts at conversion are therefore of a double-negative nature: they are happy to expose and demolish the assumptions modern atheistic metaphysics; but they will deny that their own metaphysical fundamental are assumptions.
The churches all claim that their own metaphysics Just Are True.
Or else the churches reverse the hierarchy of explanation and pretend that their metaphysical assumptions can (somehow!) be derived from the accepted facts of life; being so obvious that to express disagreement is idiotic, evil, or dishonest.
But this comes across as (and indeed actually is) merely dogmatic bluster.
The answer is that we modern people must go deep, we must go as deep as we possibly can - in order to discover our own bottom-line assumptions about reality - and to expose those of other thought-systems such as particular Churches.
It is not enough to "show" that somebody else's metaphysical assumptions are incoherent or absurd or inadequate - we must as-well be prepared to bring forward our own fundamental beliefs in order to compare them with whatever is being critiqued.
Indeed; it seems to me that after we have genuinely exposed our own metaphysics, and recognized that it is rooted in primary assumptions which are a product of our own free agency - will we then be able potentially to understand the metaphysics of anybody else.
Only when our own fundamental assumptions demonstrate positive superiority with respect to what we regard as most important, and in comparison with the fundamental assumptions of other ideologies and/or religions; will we actually have made real progress in terms of overcoming the endemic metaphysical failure of this time and place.
**
Note added:
I do not suggest, nor even believe, that it is possible that Christian churches, or any churches, could possibly do what I am suggesting - because as institutions, this would expecting churches to be anti-institutional.
No: this is something that individual persons can only do for themselves, because for themselves; else it will not be done at all.
And because it needs to be done for individual persons; this can only be done with the necessary good motivations by one who believes that knowing truth experientially is an activity harmonious with divine creation.
That is to say; one who knows, and knows why, honestly "doing metaphysics" is something that is of-itself-and-necessarily beneficial to God's cause; as well as to the benefit of our own post-mortal, resurrected self.