Charles Darwin is not the guy who proposed the idea of evolution.
Evolution was a fairly well accepted fact before Charles Darwin came along.
Charles Darwin is the dude who is most well-known for proposing that evolution results from a process known as natural selection.
(Yeah, a whole bunch of other scientists came to the exact. same. conclusion.)
On the Origin of Species is not a book about monkeys.
Darwin actually avoided the subject of human evolution in the book, except for the final chapter in which he briefly hinted at it.
Charles Darwin poorly explained some shit (eg. genetic drift, gene flow, mutation, and allele frequency) in his research but seriously, it was the 1800s and no one even knew about genetic mutation, so give the dude a break.
Evolutionary ideas and explanations go as far back as Aristotle.
Evolution is both a theory and a fact, in the same way that gravity is a theory and a fact.
We (anatomically modern humans) did NOT evolve from monkeys.
We have a common ancestor with chimpanzees and we “branched off” from them about 5-7 million years ago.
If you want to argue about evolution, either for or against, at least know what you are arguing about.