wegs
Christianity and creationism are not the same thing. Most Christians see the first chapters of Genesis as allegory or metaphor. If you want to say that god said "Let there be light!" and the Big Bang occurred, I would have no means nor any reason to try to convince you differently, we just don't know what caused the Big Bang(but we do know it happened and when).
Evolution, on the other hand, we do have copious evidence of, we KNOW that life is older than 3.5 billion years on Earth(not 6000 years as per creationists), we KNOW that nothing more sophisticated than a single cell existed before about 600 million years ago(as opposed to top down creation, we KNOW that every human currently on Earth descended from a single female who lived about 200,000 years ago(that "Eve" actually did exist), we KNOW that the human race got "smarter" suddenly about 15-20 thousand years ago, possibly from a single set of mutations or possibly due to the invention of writing, civilization and cultivation. In short, we KNOW that almost every claim made by creationists is wrong and that the goal of creationism is not a search for truth but a protection of ignorance and superstitious non-sense by those who cannot face reality. The Catholic Church has no beef with what scientists have found to be true(that has not always been so, but after so many loses they realized there is no winning with the facts on the other side)and nutjob fundies are a mystery to most of the world(and a bane on civilized, free societies wherever they do exist, here or abroad). Fundamentalism and creationism go hand in hand and they are both insults to the intelligence of mankind.
I was raised Christian, my morals are still based largely on the philosophy of Jesus(basically responsible Socialism)even as I realize he was just a man, not the deity the people of the organized cult following his death created out of whole cloth. The Old Testament was written thousands of years before Jesus, the New Testament has no content from less than 50 years after his death. It is largely fiction in both cases, it has nothing to contribute to any scientific investigation and cannot be considered history(legend and fable yes, accurate history, no). It was written within a misogynist, scientifically ignorant age and it shows. Many of the things the Old Testament tells you to do would get you arrested(if not executed)today, we don't sell our daughters or own our wives and if we kill everyone not of our temple who visits it, we deserve to be killed ourselves as we see this Biblical admonition as the barbarism it actually is. But the only one of these admonitions(kill your rebellious children, no bacon, no mixed fabrics, being crippled in the temple, divorce, etc.)is still supported, the one about homosexuality, go figure.
Grumpy