an honest epistemic position on your beliefs necessitates careful consideration of all the available data sets i.e. belief systems/worldviews

That's an awful lot of belief systems, if you intend to include all 4,000+ lifeways. You will exhaust yourself, or die, before you can encompass a small fraction of all of them in your reflections. You might settle for a random sample of the whole, or even better, a few random samples.

As a general response to your post, I feel you. I've had a mix of sympathy and antipathy towards religion, combined with a voracious reading habit since my teens, and I'm 45 now. In response to my mixed feelings I cobbled together a worldview which I shared with some friends for the first time several years ago. I was also astonished at the response. Not a person I've shared it with has been indifferent.

The result of my experience made my thinking less the gravely serious activity I took it to be for years. At this point I've settled most of my early doubts and qualms. Nowadays it's more about playing with ideas than about getting it right, even if I can hardly ignore truth where it crops up. I like to amble off on lots of side trips on my way to the good.