I wasn't sure what you meant by "multiverse." So, I looked it up online: "a theoretical reality that includes a possibly infinite number of parallel universes." Since you were talking about metaphysical multiverses, I assume you were applying it as an individual's inner existential mind and human's unlimited free will to think for themselves. As such, there are approximately 8,000,000,000 universes occupying the world today.

Do I have that right?

If so, what you are describing is the "anything goes" philosophy not dissimilar to the Bohemian movements of the early to mid 20th Century - from the hedonistic escapism of the Cabarets, threading through the Beatnik and Hippie subcultures. Those ideals had nothing to do with Biblical Christianity. My opinion here then is that you are discussing a variant of hedonistic escapism referring to Denominational Christianity existing independently from the strictures of Biblical precepts.

Do I have that right?

Just the same, Conservative and Progressive, or Traditional and New Age, whatever labeling one uses, those are all Socio-political systems - perhaps, possibly stored in the Libraries' catalog, indexed as "Religion" - but they are singularly and holistically Mankind's creation, not the Creator's work as recorded in Genesis.

Please allow me to point out my observation from my view from down where I live: Your paragraph which starts with "Sure, it’s possible..." begins a brief but revealing rant in a rather contemptuous way, a defined prejudice against New Testament teachings regarding disobedience and Judgment. Just saying.

Yes. Everybody has the right to believe whatever and whoever they choose to believe. Still and all, the Apostles were very clear about what Christianity involved. They also were very clear on the concept of consequences.

This sentence, "Most conservative Christians talk about divine inspiration as if the bible’s authors went into trances, their brains hijacked by God." also reveals your misunderstandings of and your prejudice against certain "others." This seems odd to me since you are touting the "anything goes" philosophy which morally demands accepting everyone - regardless of their metaphysical beliefs.

Now, I know that many of your persuasion detest this idiom, declaring that this idiom is idiotic, but I am going to quote it in my response: "Hate the sin, but love the sinner." In other words, accept people as they are, knowing we, too, were in just the same condition, being once ruled by our fallen human nature. Yet, we need to still detest that which separates people from God and all that He has for us, starting with the provision of a new nature Jesus provides.

The Bible teaches that we must uphold this ideal as well as the entirety of Jesus' teachings.

By the by, and just so you know, I am not against knowledge and Science. However, I am against many of the ways they both are applied.

I am a Born Again Bible Believing Christian and am not ashamed of that choice. It has been a wonder filled decision.