Darwin’s Theory might not be able to explain the creation of new species, but it certainly and obviously explains the changes in a pre-existing species. Weak attributes that lead to non-reproduction... aren’t reproduced. How can there be any argument with that? It’s basically a simple observation of the law of the jungle.
New species creation vs. pre-existing species periodic adaptations are two entirely different subjects.
“Weak attributes that lead to non-reproduction... aren’t reproduced.”
How’d the weak attributes get there to not be reproduced?
Presumably they appeared due to reproduction.