No don't kill 'ole flycatcher', he's not hurting anybody. Over the years I've grown found of him and let's not forget no matter how many flaws in Darwinian logic, Darwinism was a unified theory at a time Mendelian genetics was still not considered a real science. As bizarre as that might sound genetics and molecular biology couldn't bridge the gap between cause (physical, molecular) and effect (outward traits), until the DNA double helix. Your certainly not going to be able to purge the use of 'selection' in scientific terminology, 'selection coefficient' and 'selective constraints' for example, are vital in the lexicon of genetics. His natural history philosophy could die a natural death and the life sciences would continue on unimpeded, a little more coherent due to the use of 'selection' in the terminology.
If I would credit Charles Darwin with something credible and lasting it was his ability to make complex scientific discourse more comprehensive. Darwin seldom discussed evolution, he was comparing artificial selection with natural selection which is the whole reason for the term 'selection' in the first place. He was pretty candid about problems like infertility in hybrids and offered a strong null hypothesis for his theory. Evolution isn't one thing it's two, it's the change of alleles in populations over time. At the same time it's the a priori assumption of universal common descent by exclusively naturalistic means:
Lamarck was the first man whose conclusions on the subject excited much attention. This justly-celebrated naturalist first published his views in 1801; he much enlarged them in 1809 in his "Philosophie Zoologique,' and subsequently, in 1815, in the Introduction to his "Hist. Nat. des Animaux sans Vertébres.' In these works he upholds the doctrine that species, including man, are descended from other species. He first did the eminent service of arousing attention to the probability of all change in the organic, as well as in the inorganic world, being the result of law, and not of miraculous interposition. (Darwin, On the Origin of Species)
He wasn't the first to suggest universal common descent, naturalists existed before and have flourished since.
Science as we know it goes back to the scientific revolution, it came in the wake of the rise of Protestantism. It was suggested early that an inductive approach to natural science was preferred to the deductive logic of Aristotelian scholasticism. Physics was what was being developed and the most practical applications were the y squared and the principles of motion, resulting in the development of calculus. Astronomy benefited greatly as well but not because of the epistemology we call science but the development of the telescope. The first telescope was developed by a Dutch astronomer but Galileo developed one that could magnify the heavens 35x. Science was anything but primitive in the days of Darwin and it should be noted, Darwin was a poor scientist at best.
Darwinism was synthesized with genetics during the Modern Synthesis, that's why the term keeps popping up.
The modern synthesis was the early 20th-century synthesis reconciling Charles Darwin's and Gregor Mendel's ideas in a joint mathematical framework that established evolution as biology's central paradigm. (Modern Synthesis)
Charles Darwin didn't give enough credit to his grandfather for his ideals of natural history:
“Organic life beneath the shoreless waves
Was born and rais’d in Ocean’s pearly caves
First forms minute, unseen by spheric glass,
Move on the mud, or pierce the watery mass;
These, as successive generations bloom,
New powers acquire, and larger limbs assume;
Whence countless groups of vegetation spring,
And breathing realms of fin, and feet and wing.”
―
Erasmus Darwin
Indeed, Gregor Mendel was given full credit for his foundational work that spurred science ahead by leaps and bounds for a hundred years:
The rediscovery of Mendel's laws of heredity in the opening weeks of the 20th century sparked a scientific quest to understand the nature and content of genetic information that has propelled biology for the last hundred years. The scientific progress made falls naturally into four main phases, corresponding roughly to the four quarters of the century. The first established the cellular basis of heredity: the chromosomes. The second defined the molecular basis of heredity: the DNA double helix. The third unlocked the informational basis of heredity, with the discovery of the biological mechanism by which cells read the information contained in genes and with the invention of the recombinant DNA technologies of cloning and sequencing by which scientists can do the same.
The last quarter of a century has been marked by a relentless drive to decipher first genes and then entire genomes, spawning the field of genomics. (Initial Sequence of the Human Genome, Nature 2001)
You don't need to kill it, just quit equivocating Darwinism with science and evolution.