I think when it comes to the origins of our existence, regardless of what you believe, it requires faith.
I was watching a video on Buddhism this week and one thing they stress is not letting religion divide us. See the good in other faiths and find commonality amongst each other. That’s an approach we can all learn from, I think.
What does not require faith is not being fooled into believing anyone knows the origins of our existence. The best anyone can do is put forward testable theories that fit the currently available facts and discard the theories that don't. And then keep testing and learning.
Or, you can just have faith that you're right regardless of any facts or lack thereof.
No those who do not hearken to God do not have faith because Faith originates with the assurances of the Testifier. Those assurances are the substance upon which Faith stands and without those assurances all that one has is unsubstantiated speculation no matter how strongly convinced is the person who believes the unsubstantiated.
The things which God assures us are true are called ὑπόστασις (hypostasis)
Those assurances produce ἔλεγχος (elegchos)
ἔστιν δὲ πίστις ἐλπιζομένων ὑπόστασις πραγμάτων ἔλεγχος οὐ βλεπομένων
Another way of saying the same thing is when Paul said "Faith comes by hearing and hearing by the word of God."
If God did not say it first, then a conviction is not faith.
Still another example is when Jude wrote that Faith was delivered. God's word is the origin of faith.
ἅπαξ παραδοθείσῃ τοῖς ἁγίοις πίστει
Agnostics and Atheists believe in things for which they have no true evidence but their belief is not faith because it is not predicated on the trustworthiness of the One who testifies.
ἐκ πίστεως εἰς πίστιν
You just said the same thing I did, that your "belief" has no basis in fact.
And that's fine if it brings you comfort, unless of course, when faith and gullibility is used to grift money from others.