Good boy, goodboy! By numbering your "points," such as they are, you made point-by-point refutation that much easier! :D
1. The BC/AD dating system dates back to medieval monks based on a probably-inaccurate GUESS as to when Jesus of Nazareth was likely born. Most modern approximations of the time of Jesus's birth are around 4-6 B.C. So--the Christ was born 6 years before Christ? Oops! This is why those pesky "Current Era" and "Before the Current Era" abbreviations came about.
2a. Most Christian lands got that way by forced conversion and torturing people to death who refused to "choose" Jesus. (In other words, Cake Or Death.) See Also: The Spanish Inquisition; the Crusades; just about everything Spain did in the New World, ever; and most instances of Anglo-Native American conflict (especially the Pequot War, which was the complete destruction of an entire tribe, including defenseless children, for no good reason; and King Charles's War, which was against the same people who helped the Pilgrims survive in the first place). Once you've utterly destroyed all the native religions and supplanted them with Christianity, it only makes sense that Christianity's sacred text would become a best-seller.
b. Most Bible sales numbers ignore the fact that quite a few people own numerous copies of the Bible in several different versions. For example, in my household, there are several copies of the KJV, an NIV, an NASB, a Living Bible, 1.5 TEV's (one NT, one full Bible), two copies of the New Catholic Picture Bible (a children's abridged version of the Bible that removes all the sex scenes), and one pocket Bible that was a gift to me when I graduated from Kindergarten (KJV NT & Psalms). Most of the KJV copies are kept for sentimental reasons (gifts received long ago from family tend to be kept around). At one point, we also had a dozen or so of those horrible Gideon pocket Bibles. Those are now in a landfill, because even very devout Christians (i.e., my family) don't want that many throwaway copies of the exact same version of the exact same book taking up space in their homes.
c. Not everyone who owns a Bible is Christian. I know quite a few atheists and Neopagans who keep the Bible around either as literature, or so that they can defend themselves from hateful posts by so-called Christians who should start Loving Their Neighbors instead of slandering them, or at least find better uses for their time.
3a. Quite a lot of those Bible "predictions" were written after the events described had already happened. An inserted "prophecy" that happens after the stuff in the main story, but before the story takes place, is a tautology, not a prediction. It would be like me writing a story set during the Revolutionary War that predicts the invention of automobiles. We have automobiles today, at the time I'm writing the story, so I'm not writing any impressive prophecies, I'm just making myself look like a jerk by making the automobile appear inevitable.
b. The "prophecies" that took place after the books were already written (and thus, don't fall under part A above) tended to be couched in such vague and general terms that something along those lines was bound to happen sooner or later. If I say, "It will rain in Seattle on a Tuesday," my prediction will come to fulfillment 3 or 4 times in the next month alone! Similarly, insisting that a small country like Israel would be invaded, during a time when Middle Eastern empires were conquering each other left and right, isn't exactly some sort of deep hidden truth.
c. Despite everything you've been told, Biblical prophecies weren't supposed to come true. You see, in Jewish culture, a prophet was supposed to warn people what would happen if they didn't change their ways. People were supposed to change things, so that the prophecy wouldn't come true. This concept is made crystal-clear by reading the entire book of Jonah, instead of skipping what happens after the whale part.
4. Not quite. To cite merely one example, Paul says, "We are saved by faith alone, not by works, lest any man should boast." James says, "Just as the soul without the body is dead, so faith without works is dead." Jesus told a story whose entire point was that people who helped the poor went to heaven, and people who didn't help the poor burned in hell for eternity. This isn't one of those piddly "how many Israelites from tribe X went to location Y after event Z?" clerical errors, this is an issue that cuts to the doctrinal core of Christianity--specifically, what people have to do to get into heaven.
5a. People warp the Bible to support their own views all the damned time. Pat Robertson recently turned the central purpose of the Bible on its head by stating that the Haitians never should have revolted against slavery at the hands of the French, and that the fact that they succeeded, and that their country is so poor today, means they must have "made a deal with the devil" in order to win. So the devil sets free the captive and cries out for the poor to receive justice now? How the times have changed!
b. Old Testament God is a xenophobic, genocidal monster who indulges in sadistic "punishment" of the Israelites whenever they don't toe the line. New Testament God is "for all nations," is "love," and is clearly and unequivocally on the side of the poor, lowly, and outcast. If you can't see the difference, you need some serious vision correction.
c. The "central truths" aren't that clear to begin with--see point 4 above.
6. If by "more and more," you mean, "There is corroborating evidence that David, Solomon, and Pilate existed," then yes. If you mean to imply that the Exodus, the resurrection of Jesus, Noah's Ark, or any other events in the Bible have any corroborating evidence outside the Bible, you're either lying or misinformed. In fact, the events in the Bible centered around David, Solomon, and the trial of Jesus have no corroborating evidence--the only proof we have is that three specific people existed, not of anything that they did, and Jesus is not even one of those three people!
7. Not quite. Different Christian denominations have different amounts of dogma. Some churches require you to believe in the Rapture; others say it's hogwash. Some churches believe in "speaking in tongues;" others frown on such displays. And to give an example of the amount of stuff you have to believe to be an upstanding member of a church: the Catholic Church has the Catechism, a book of Catholic Christian beliefs that is as long as the Bible. Most of the content in the Catechism (e.g., the existence of angels, Mary being a virgin when she gave birth to Jesus, the resurrection, the goodness of giving charity) is directly lifted from the Bible to begin with. With the exception of the Trinity, very little of the non-Biblical stuff is shared by other denominations (and not all of the Biblical stuff is, either, judging by the number of people who believe in the "prosperity gospel.")
8. Except for gay Christians, Christians who believe abortion is a difficult decision for anyone to make and is morally acceptable in certain "hard cases," Christians who believe that helping the poor and loving thy neighbor is more important than ostracizing the two former groups, etc. Those groups are all marginalized, looked down on, and in many cases shunned outright or tortured by other "Christians," who in turn are regarded as moral pillars of society and given honor and prestige. No one has any greater access, my ass.
