Are we all descendants of Adam and Eve?

Not all Christians, by far, are in the Christian Club of Ignorance. The CCI consists of people such as yourself dedicated to denying pretty much all of reality.

Don't know. Doesn't matter. Me. Because of millions of years of evolution. Nope. Yes, fossils are part of the evidence for evolution. Humans arrived partly by lucky mutations. Also by selection, drift, etc.

It matters to me. But that's a very different question than "why are you here?". That's hard to say. There may not have been anything that we would recognize as the first instance of natural selection were we witnessing it. Biological boundaries tend to be fuzzy and hard to pin down. There was a time when there was no biological natural selection, there was a time sometime later when natural selection was operating, and research is ongoing. So what? I prefer it the way it is, but a near-infinite number of other outcomes would have been possible. That's way off topic. But it is the best description we have of the history of life, by far, and knowledge in itself has some value. It's foundational to all of biology and a lot of medicine. And more.

As far as I know, I have no reason to be here and neither does the thief. But if there is a reason for being here, both of us could be right or both wrong or one wrong and the other right. So what? As have all the major religions and many political movements and many other scientific discoveries. Some people do bad things for all sorts of reasons and using all sorts of tools. Don't blame the tools or their excuses, blame the people.Guess you better turn off all the electricity in your home because of the horrible things that have been done with electricity. And don't get me started on automobiles! Or airplanes!

Note that in none of those quotes does Darwin advocate any kind of intervention in natural processes. He's speaking of what he expects will happen. The first one especially is an egregious quote mine that is discussed at Quote Mine Project: Assorted Quotes.

It's very different. Talkorigins.org content is written by people known to be knowledgeable in the field, is "peer-reviewed" and edited by the participants in the talk.origins newsgroup, and typically contains references for further investigation.Of course the ultimate test is whether the content the content itself is verifiably correct.