Charles Darwin peddled a nonsensical, pseudoscientifc theory
Evolution from common descent by natural selection is such a logically compelling conclusion that, in hindsight, it almost seems bizarre that it took science so long to figure it out.
that has since been debunked
No, it has been modified and expanded upon, most notably in synthesising it with genetics, the mechanism of inheritance that eluded Darwin.
yet for some reason continues to be believed by millions of people (even some so-called "Christians"!) worldwide.
Because, in the immortal words of Christian evolutionary biologist Theodosius Dobzhansky, nothing in biology makes sense except in the light of evolution.
His name deserves to live on in ignominy.
Darwin is most certainly one of the greatest scientists in history. And even without evolution, he also rediscovered the importance of earthworms for soil quality, so he still deserves credit.