I don’t believe that reductionist materialism is the only alternative to bizarre and unprovable mystical beliefs. You can go to Aristotle, Ayn Rand or a number of other good secular thinkers and find a different perspective.
the only alternative to bizarre and unprovable mystical beliefs
You've substituted nonsense for the half of my dichotomy which was " religious worldview - whatever form that may take." By this I mean something that includes knowledge beyond the confines of reason/logic. Since pure reason logic is forever conditional, materialism and scientism are the result of those who limit themselves to it.
You can go to Aristotle, Ayn Rand or a number of other good secular thinkers and find a different perspective.
I would disagree with putting Rand in this category. She did not believe anything could or does transcend reason - I think a provably naive position.
Don't get me wrong on Rand. Her books forever change a great many college-age students for the better, myself included. Great stuff. However, we hopefully grow to include more knowledge or our reason/logic has nothing for its foundation.