Any type of bottom/up approach to knowledge (eg foundationalism starting from necessary assumptions, gathering evidence, data IOW scientific method) will yield nonsense to the question of God. It’s literally “impossible” to prove a metaphysic with data. It’s the very difference between science and philosophy. The only way for a conversion is through faith. Faith is the foundation of metaphysical belief. If you’re a skeptic, you’re sitting this one out.
Theology is a top/down approach to knowledge. You’re looking for “proof”, that’s bottom up. That’s what I meant about sitting on the sidelines. There’s no possibility of being converted without taking a leap of faith. You can limit your assumptions, though. Keep them simple.
The struggle against literalism. I’m the opposite. Didn’t have a strict religious upbringing and I’m finding spiritual truths in everything. The symbolism of Christianity is as real as real gets. A foundation of Western thought. Culture. Music.
You believe because you desire to. Or you disbelieve because you desire to. I believe in God because it’s the simplest metaphysical explanation to account for all reality. My desire is for discovery. Why are you a skeptic?