Evolution is theory, and is fairly robust, but very difficult to test and observe. There is no “settled science”in Science. It is all open to refinement, and incorporation of new observations. Only a non-scientist would make a claim that “this is Science fact” or “the Science is settled.”
Allele frequency change is not speciation (therefore not evolution), nor is it introduction of new genes into the species gene pool.
This selection pressure is all within the steady species state in Gould’s punctuated equilibrium model of evolution.
Amateurs chanting “evolution” don’t actually advance Science.
(On natural climate change, I’m fairly sure we agree completely.)
The specifics of evolution are constantly debated, debunked and revised but once the overall theory is contradicted by irrefutable evidence, it would cease to be a theory. However the evidence continues to accumulate. I don’t think there is a competing hypotheses with any observed support. The tripping point for most of us is to embrace the deep time necessary but that too as overwhelming factual support in geology, biology and physics. It’s a mind bender for a short lived person such as I to comprehend 100,000 years, let alone 4+ billion years.