Echigo109, that's a ridiculous statement. Who gets published and who does not is not determined by talent alone. But I'll humour you, and give you one or two of the countless answers to your question.
1. We do not have the time. Most of us are in school, working jobs or otherwise engaged. Christopher Paolini dropped out of high school to write that series.
2. Not all of us possess the drive. You have to really want to publish a book to do so; it is a very large commitment and requires much time and energy. Although many of us would LIKE to have a book published, it is not necessarily a goal or even a realistic thought for all of us.
3. Christopher Paolini and his family published his books; he did not need to search for a publisher. I'm sure many of us would be able to find publishers, but that would require more time, energy and money that isn't necessarily available at the moment.
4. Even if we did write our own book(s), that doesn't mean it would be published. Brandon Sanderson, I believe, wrote (something like) nine different (complete!) novels before Elantris was finally published. Once again, more time, energy and money that many of us do not possess.
5. Many of us have at least one story we are currently in the act of writing. Some of us are actually published authors. So, it is quite likely that, indeed, some of us will be writing (and publishing) our books.
Just one more point. Right now, we are acting as informal 'critics.' We are not professionals, but the fact that we are critiquing Christopher Paolini's work in a sense makes us critics. And the job of critics is simply that–to critique artists' work and offer their opinion on how it was. Many famous critics (possibly even the majority) in the world (of art, food, movies, et cetera) are not necessarily talented performers (I use the word loosely) in the various fields that they critique–the reason they are famous as critics and their opinions are respected and acknowledged is that they (to put it simply) know what it is good, what is bad, what works well, and what doesn't–in short, they have experience in field(s) and know how things should be done. If I have still not convinced you, then here's a quick example: Anyone can tell the difference between beautiful handwriting and illegible handwriting. I certainly can, and I have horrible handwriting. To recognize an accomplishment, you do not have to be capable of such an accomplishment yourself.
I know I said that would be my last point, but I have to say one more thing. You could say that sentence to any critic in the world who gave a negative review about a dish, a piece of art, a movie, et cetera. But…it is the job of critics too share their opinion, and if that opinion is negative, then so be it. You cannot fault people for sharing their opinions.
