> The capacity to think critically cannot spring from rocks or primordial goo. Something cannot come from nothing.
You're misrepresenting evolution here by doing the very thing you accuse me of doing, skipping steps. Please learn how evolution actually works before criticizing it.
> What is the ground of logic? What is the source of rationality? What are the necessary preconditions of the intelligibility that you seek to discover via experimentation and observation?
These questions are almost nonsensical. Logic, rationality, intelligibility, observation all occur in the mind. The ability to understand and think about these topics is something humans have evolved to do, not because philosophy is evolutionarily advantageous, but higher brain function in general was.
> What is the metaphysical basis for assuming that what is observed today will persist tomorrow?
There is no such thing as the "metaphysical". At least so far no demonstrable evidence anything metaphysical exists. But if you have such evidence why waste time talking to me. Present it to the scientific community and claim your nobel prize.
> Christian theism can.
Look if your religion makes you feel better good for you. I happen to think the Christian religion (along with most other religions for that matter) do more harm than good in the world, and I will speak out against it whenever I have the opportunity.