The problem does not lie with theistic evolution, but with the unChristian, unBiblical, and dangerous theology of god-of-the-gaps.
You need to do better than this garbage. ''god-of-the-gaps'' is nothing but a scoffer propaganda tool. Nobody thinks such self-contradictory bunk outside of scoffer imagination.
''God-of-the-gaps'' is not only a straw man, it's a very poorly-constructed one with its makers' fingerprints all over it.
Straw Reasoning:
We use gods to explain everything we don't know
We used to use gods a lot, but the more we learned, the less use we had for them
Little by little we proved God was never involved in this or that
We now know just almost everything
We're down to just a few gaps, and we use God as a placeholder
Eventually we'll know everything and no longer need any god.
--- None of that - none- reflects Christianity. ---
Actual Reasoning of Christians:
God made everything and put man in charge
We do well to investigate
We know God is involved in running creation
We know God has set up rules and systems we call 'nature'
We trust scripture first, then fallible methods
The more we learn of God's creation, the more opportunities arise to glorify Him
--- Now I may have left something out. It's hard to say because the two systems are so totally alien to each other. ---
Of course in apologetic reasoning we don't start knowing God made everything:
God may or may not exist
Apologetic arguments indicate God exists
On common sense, without fallacy or assertions, apologetic arguments succeed
(optional) On common sense, without fallacy or assertions, atheistic arguments fail horribly
Proceed to Christian reasoning
--- Now let's review, so it can sink in just how bad this straw man stinks. ---
}We use gods to explain everything we don't know
Untrue. A personal example: God may or may not be holding the nucleus of every atom together. I don't know. If we continue to investigate, it may be that something God-made device will be found. It may be merely that God commanded the particles to cling together as they do, and there is nothing to find. Only a device is potentially discoverable. Proving no device exists is problematic, so if God is Himself doing it, we cannot discover this. If God's command alone is the cause, and no device, we shall never discover this either, unless we learn to talk to particles.
There are tons of things I don't know; I don't just figure 'God' is the direct answer. What's the optimum bore to stroke ratio for a gasoline engine? Nobody replies ''God is.''
}We used to use gods a lot, but the more we learned, the less use we had for them
}Little by little we proved God was never involved in this or that
Those two go together. The examples given are always pagan, and have nothing to do with Christians. No, I don't believe Zeus was throwing lighning bolts until electricity was discovered and then Zeus had to retire. Nobody does! You can't even find a pagan who believes that.
Historically, it was the pettiness and immaturity of Greek gods that turned so many atheistic - hard to worship a crew like that. That's what they say, at least. You know it wasn't Ben Franklin! (Sometimes I feel like I must be the only one who pays any attention to scoffer stories.)
When Christians do make scientific discoveries, we don't say ''Oh there's one more thing God never did.'' God created everything and ordained all the laws.
}We now know just almost everything
This arrogant claim betrays its source readily enough.
}We're down to just a few gaps, and we use God as a placeholder
Just more silly arrogance, clearly antithetical to the profitable Christian approach. Who says there ever was any gap at all in our knowledge? A gap is an in-between place. That's an odd analogy for learning. Why not think of knowledge as a growing and shrinking sphere?