This should be a top-level post.
Sorry, I skimmed and didn't get your main idea at the time. A three-sentence summary upfront would help a lot.
We can keep seeking the perfect worldview forever, and we'll never find one. The answer to how to make the best choice every time. The answer to moral dilemmas. The answer to social issues, personal issues, well-being issues. No worldview will be able to output the best answer in every circumstance.
Sounds like a skill issue.
I'm reminded of a pattern:
… and in this situation, my response is “It’s not hopelessly complex, that’s just what it looks like when you choose the ontology without doing the work to discover the ontology”.
There is a generalized version of this pattern, beyond just the "you don't get to choose the ontology" problem:
My generalized response is: it's not impossible, you just need to actually do the work to figure it out properly.
Terminological note: something which does not buy ample time is not a pivotal act. Eliezer introduced the term to mean a specific thing, which he summarized as:
That same page also talks a bunch about how sticking to that definition is important, because there will predictably be lots of pressure to water the term down.