I suppose a better question then would be, why are your views so much different to other christians?
You believe that the world is 10000 years old, and that giants once walked the earth. Ive never met a christian who believes that, including my old minister.
How comw youve ended up with views that seem completely out of step with modern christianity.
What's modern Christianity?
There are all sorts of Christian sects and denominations even in today's world.
Personally, I think Iamnotaparakeet (and Christians like him), as ridiculous as their beliefs are, have a more honest and accurate approach to the Bible than liberal Christians.
The books in the Bible were originally meant as a tool to control masses of gullible uneducated people. It was not often meant to be taken metaphorically as many today's Christians do.