Most of them were plagiarized by the Bible authors.
So? This isn't a term paper where plagiarism matters.
True, But many Christians hold that "Without the bible there can be no morality". They use this as a justification for the rightness of their religion. Most of them are completely unaware that there were complete and consistent moral systems hundreds if not thousands of years before the bible was written. I've met quite a few of the "if the bible didn't exist we'd all be rioting in the streets crowd. You ask them how did society work before the bible and they turn their head to the side like a confused dog and say "BEFORE the bible?" Like that's an impossibility.
Pragmatic reasons. Christianity has done pretty damn well for itself over the last 2,000 year in terms of advancement of human civilization and human rights.
You're right! Where would we be today without the Dark ages? The Crusades? The AIDs epidemic in Africa? The Inquisition? The Salem Witch burnings?... Why... why... we'd be.... centuries more advanced probably.
As a science type, I encourage you to not turn off your brain to astrology, Feng Shui, crystal power, and other crap.
Instead, test it formally, with double blinds, hoping that it works (so you don't subconsciously suppress data). Then if you find something, have others duplicate your work. That's the scientific method.
Done, Done, done and done. There have been _endless_ double blind tests of alternative medicine and other magic beans. All of them show that the accuracy (if even testable) is no better than blind chance.
The reason "us science types" are so dismissive of these things is we're sick of re-debunking ideas we finished with _decades_ ago.
It isn't easy being the parent of a six-year-old. However, it's a pretty small price to pay for having somebody around the house who understands computers.