Christians in the US who oppose evolution or other scientific theories appear not to understand the difference between science and faith.
Natural reason and divine faith are not at odds (indeed I view them as complementary, I am a Christian) but they are very different means of pursuing knowledge based upon distinct “methods”.
What distinguishes science from faith is falsifiability, empiricism and the ability to make testable predictions. This is the fundamental difference between science and other belief systems: that a scientist can predict something in advance (we don’t know whether its true or not), then when we make an experiment and its confirmed, that then gives us reason to believe it.
Since you raised it first, let’s consider a paradigmatic example - one among many - from the Theory of Evolution to illustrate this. Darwin was fascinated by orchid pollination strategies and actually discovered a special kind of orchid known as Angraecum sesquipedale. It had an uncharacteristically long pipe-like “nectar reservoir”.
Now, on the basis of this discovery Darwinpredicted the existence of an insect with a proboscis that would be able to get “in there” and retrieve the deeply-hidden nectar.
And not long after, biologists found one -exactly as he had predicted. So the theory of the mutual evolution of pollinators and plants successfully made the prediction that if there was a plant that could only be pollinated in this way, there must be some insect that did it. And this is what you call a “testable prediction” in science.
Einstein’s theory of General Relativity, likewise, has made innumerable correct predictions - from the gravitational bending of light to the time dilation measured by our GPS phones.
There is no such experiment you can point to that could reasonably test the existence of the Holy Trinity or the Virgin Birth - because they are articles of “faith”, contingent upon the premise that they derive not from natural reason (as with science or philosophy) but from divine revelation pertaining to truths beyond the threshold of science or physical laws bounded by spacetime.