You asked so kindly, and I respect your thinking, so I’ll respond.
You don’t assert literal interpretation - others did.
You don’t rely (absolutely, perhaps somewhat) on direct revelation - but others did.
You espouse an Historical-Grammatical method, which is basically what I was advocating. It is essentially the method used by the Catholic Church, which maintains lots of scholars with a long formal vetting process, augmented with lots of prayers for guidance. It is imperfect, as any human system will be, although with with checks and balances built in.
When you rely on such an approach (Historical-Grammatical), different scholars may still reach different conclusions (interpretations). New facts may be discovered, which would alter earlier conclusions. For example, you mentioned Heliocentrism in a earlier post, where thinking changed over time. Some points may simply not be decisively resolvable based on the limited information known.
The bottom line, is that such an approach (Historical-Grammatical) does not provide the absolute inerrancy claimed by the other approaches.
Please note that this is (inherent) imperfection in human understanding, not to accuse imperfection on the part of God.
Without an absolute certainty of divine understanding, I believe it wise to be circumspect about passing judgement on others. That is what I found lacking on this thread, and why I spoke up. The absolute certainty that many seem to claim is expressed as intolerance and bigotry, disrespect and derogation of others - a quickness to declare heresy, akin to takfiri muslim fundamentalists.
So whether folks rely on literal reading, or a priori agreement on a fundamental set of dogmas that they assert to be absolute certain truths (as you propose), or acceptance of absolute rules for interpretation (as do takfiri muslims); by emphasizing the aspect of absolute certainty of understanding, they will naturally engender a higher degree of such intolerant hubris in their followers. That is an inherent downside of Fundamentalism. Not necessarily a fatal flaw, just something to guard against.
Folks have argued that we should discount certain things in the Old Testament, because God can change the terms at different times and different people - yet they deem it out of the realm of possibility that God might provide Mary or a brown scapula to benefit certain people of a certain time.
Devotional and mystical practices are more emotional and experiential, rather than analytical or logical. Yet they can powerfully move some people and benefit them greatly. Throughout history, and around the world, people have engaged in such practices. Some percentage of any population will have a naturally greater attraction to, or talent for such religious experience.
It seems to me that, like muslim fundamentalists, Christian fundamentalists tend to take particular exception to much of devotional practice as superstition or magical thinking, while being ambivalent about mystical practice.
Every human, and probably every mammal, has deep feelings and instincts concerning their mother and being mothered. Maternal love has special ability to calm fears and soothe pain. So many people in this world are subjected to horrible pain and terrifying prospects - we are all going to face death and the deaths of our loved ones at some point, and God only knows what other horrors we may experience in this world - there are plenty.
In my experience, some people are naturally attracted to Mary, but many more are helped with Marian practices when crushed with pain (e.g. mourning) or facing great fear (e.g. combat deployments, terminal illness).
Probably the biggest Catholic Marian practice is praying the rosary, which is akin to the “worry” beads which other religions use to count repetitions of prayers or mantras. In Hindu, Buddhist and muslim traditions, such repetition practice is considered particularly suitable for the the same kinds of challenges (pain and fear), as well as for people who are not intellectual by nature or lack high intellectual capability. I don’t know Jewish practices well enough to compare them.
But there is an emotional reaction to dogmatic/intellectual/legalistic attacks on Marian practices, that is not so much due to intellectual disagreement. Marian practices are often associated with very sympathetic situations, such as with people who are dying and in pain.
The Hail Mary (Ave Maria) is traditionally offered at funerals - it includes the request to “pray for us sinners, now and at the hour of our death” So when people attack these practices, the association is with sensitive memories, like saying goodbye to Grandma, where these practices are the main balm that is shared to soothe the pain. It comes off as really harsh, cold hearted - even cruel.