Why do people deny evolution?

the first occurences of sexual reprodution go back in the fossil record to the post Cryogenian. The occurence of "spatfalls among the fossils of eukaryotes in the ediacaran " and the quick rise of dimorphism and polymorphism supports the benefits of sexual v asexual repro.

Instead of getting angry and calling names. Why don't you fill in the gaps?

Question: How did male and female reproductive systems develop at the same time in separate organisms accidentally?

Answer: They didn't.
Sexual reproduction began without sexually distinct organs, and then such organs evolved in tandem over time. Many plants, for example, are hermaphroditic: each plant has both male and female sexual organs. But the first sexually reproducing organisms were a form of single-celled bacterium which thus had no organs at all. As sexually reproducing organisms evolved into multicellular forms and their cells began to specialize, some cells began specializing for male and female reproductive function, both evolving at the same time, by small gradual steps.

Evidence suggests gendered organs probably began as organs in the same individual (as in many plants), then the capacity evolved in some species for individuals to become gender diversified by their environment (as in many reptiles, some developing male organs, some female), and then finally these gender differences became locked into DNA as a chromosome mutation. All this occurred long before any mammal existed. Thus, the very first mammals were already genetically evolved to have fixed genders, and already had matched gendered organs in place, as those organs had evolved long before (from fish through reptiles). Human sex organs are just evolved versions of their mammalian ancestors' sex organs, which is why our genitalia are almost identical to those of apes and monkeys. And mammalian sex organs are just evolved versions of the sex organs of their ancestors, the reptiles, which is why mammals have genitalia most similar to reptiles (in contrast to birds, insects, or fish, for example).

It's worth adding that the implication of the question being asked is that sex organs have to "fit" each other, which is actually a late development in animal history. Fish, for example, never even come into contact. The male organs merely inseminate eggs that have already been laid by the female. This procedure gradually evolved into the system most commonly found in reptiles, where the male inseminates the eggs while still in the female, originally relying on only a very crude fit between genitals. But once this had begun, a better and better fit evolved. Then some of these reptiles evolved away the need for an actual egg and thus started giving live births, and from them mammals evolved, which is why we don't lay eggs. Hence the "fit" between human genitalia is a feature that has gradually evolved over eons, and had already been well developed even before mammals appeared (much less people).

It's easy to find articles on how sex evolved.
https://www.google.com/search?client=safari&rls=en&q=how+sex+evolved&ie=UTF-8&oe=UTF-8

Since we have no other evidence than what is provided by scientists who study this subject, I'm prone to believe them until new findings are found.

Since we have no other evidence than what is provided by scientists who study this subject, I'm prone to believe them until new findings are found.

Brian linked to his religious manifesto where he questions science and posts Bible verses to explain what he thinks can't be explained by science. He isn't trying to understand the science at all.

Question: How did male and female reproductive systems develop at the same time in separate organisms accidentally?

Answer: They didn't.

Evidence suggests gendered organs probably began as organs in the same individual (as in many plants), then the capacity evolved in some species for individuals to become gender diversified by their environment (as in many reptiles, some developing male organs, some female), and then finally these gender differences became locked into DNA as a chromosome mutation

But once this had begun, a better and better fit evolved. Then some of these reptiles evolved away the need for an actual egg and thus started giving live births, and from them mammals evolved, which is why we don't lay eggs. Hence the "fit" between human genitalia is a feature that has gradually evolved over eons, and had already been well developed even before mammals appeared (much less people).

Richard Cevantis Carrier (born December 1, 1969) is a historian, atheist activist, author, public speaker, and blogger. He has a doctorate in ancient history from Columbia University where his thesis was on the history of science in ancient antiquity. He is a leading proponent of the Christ myth theory.[2]

Brian linked to his religious manifesto where he questions science and posts Bible verses to explain what he thinks can't be explained by science. He isn't trying to understand the science at all.

Yes, but he's asking for something far more specific. He's trying to understand the evolution of the physical morphological organs involved. He's not asking about the cellular. Most articles (like the link you provided) are focused on the earlier evolution of the genetic mechanisms.

since the Bible makes no attempt to verify its writings , nor does it demand such verification (by evidence), It stands as an example of Faith over Reason.

So maybe while you exaggerate the "Burn him" statement just for effect, youve not provided anything to show that the Bible has nothing but faith with which to back it.

All youre doing is encouraging him.

Brianjakub's physics theories have a lot of holes in them (although his speed of light theory was interesting) but his question about sexual reproduction was totally legit. His electron flow theory was better that he himself thought but he didn't have the physics chops to defend it and let himself get led down a few rabbit holes while trying

What is this evidence suggesting this? What evidence do we have that reptiles developed gender diversification? How did the male and female version of these reptiles reproduce while they were evolving?