Charles Darwin is the founding father of the Evolution theory,…

Charles Darwin is the founding father of the Evolution theory, when you look him up it says as follows:

“His proposition that all species of life have descended over time from common ancestors is now widely accepted, and considered a foundational concept in science.”-Wikipedia

Charles Darwin had an extremely primitive knowledge of biology, he formed his theory in the 1800’s before the technology was around to observe microbiology the way we can now-

He had many doubts about some fundamental things for his theory Darwinists still defend today, namely the complexity of organisms, and the “fossil record”..
He quotes: “If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. But I can find no such case.”

Note he said “any”… The least complex organisn there is, is a single celled organism called an Amoeba; there’s enough DNA information in just one Amoeba than there is 1,000 complete sets of Encyclopedias.
Even Richard Dawkins pointed this out about the complexity of the Amoeba-

Instead of facing reality and letting Evolution “absolutely break down” Darwinians make up supposed “organisms less complex than the Amoeba which evolved into the complex organisms we know today”; there’s absolutely zero evidence for any of these “Just so” assertions…

Another leg Darwinists stand on is the fossil record; Darwin quotes as follows:
“But just in proportion as this process of extermination has acted on an enormous scale, so must the number of intermediate varieties, which have formerly existed, be truly enormous. Why then is not every geological formation and every stratum full of such intermediate links? Geology assuredly does not reveal any such finely graduated organic chain; and this, perhaps, is the most obvious and serious objection which can be urged against the theory. The explanation lies, as I believe, in the extreme imperfection of the geological record.”

Though with primitive access to information in the 1800’s; Darwin was not in denial about his theory as much as many of his followers are in the 21’st century-
Other evolutionist biologists agreed with this statement, including Henry Gee, Gareth J. Nelson, even Stephen Gould; a leading Darwinists scientists through the 80’s to early 2000’s..

There’s so much evidence against this dumb theory, far more than Darwin declared be enough for it to “collapse”; why do Darwinians defend it rather than let it die?

Because since the 1800’s to present day, it gives a more comfortable alternative than opening the door to the possibility of a Creator.