If I meant Darwinism, and not evolution, I would (I hope) specify Darwinism
“Darwinism” and “evolutionism” & “evolution” are not convertible terms - I accept evolution as an hypothesis, because I have no reason not to (not being a scientist).
I don’t see why I should accord Darwin (or anyone else) an authority which is due only to Scripture; not because it is Scripture, but because it is the Word of God. And I don’t accept Scripture as the final authority on all matters historical (say) when it is not seeking to assert, with such final authority, matters of an historical nature; sometimes, what seems to be an historical narrative, is better understood as a saga, or an aetiological myth, or a legend, or the like.
Why should I accord Darwin an authority that even the Bible cannot be given ? What matters is not the source for what is said, but what is said, & how it is to be understood. If Darwin (or Haeckel or Haldane or some other) appeared in a vision, to announce that Darwinism
as such was a divinely-revealed truth, such a vision would have no authority except for the visionary; its validity would be relative to that of the revelation of God in Christ, which is its proper environment, intellectually, theologically, spiritually - & scientifically.
It would have no value in certain contexts - Biblical scholars can’t use preternatural or supernatural entities as evidence in their work, because such entities cannot be accommodated within the requirements of the methods proper to Biblical scholarship; scholarship cannot be a co-operative venture, if those engaged in it are using different methods.
But there is no reason to think that Darwinism is divinely revealed - therefore, it would be superstitious to treat it as such.
I reserve the right not to give implicit & total credit to any man on earth - not even to Darwin. I don’t think that is dogmatism; I think it is a sensible approach. If Darwin did not think he was infallible, why should anyone else think so ?

And by what right must they think so ? He is as subject to correction as any other human being, AFAIK.
Besides, one cannot expect Christians to have the same mental attitudes as atheists - or conversely. The difference is not purely academic, but is a difference in one’s entire outlook on the universe. Elements of Darwinism can (one assumes) be accommodated within the Christian “mould”, & presumably the converse is true - but to decant either into the mould of the other, is not possible.