OK so you don't know whether Intelligent design was needed or not but have your opinion about it anyway even if it is just a faith based opinion.
My opinion about the origins of life is not faith based. It includes no unjustified belief. Yours does. If you were to stop where I do and say that life might have been intelligently designed, you would have made no leap of faith. When you went further and decided that a god was involved, that's when you took a leap of faith and we parted ways.
life appears to come from pre existing life, so it appears that life needs a life giver.
As far as we know, there is nothing about life that requires that the first life came from previous life including the fact that we haven't witnessed or reproduced abiogenesis yet.
In fact, that's what you believe, isn't it? Do you consider your god living? If so, then you believe that that god is life that didn't come from other life. If you consider disembodied mind not alive, then the life it created is life that came from non-life according to YOU, right? Do you find fault with that comment? If so, which part, and what makes it wrong in your estimation?
the stories have not been falsified.
They've been shown to be untrue, which is what falsified means.
I would say that probably most believers believe in a literal Adam and Eve. I may be wrong. I don't think that means that the story has been falsified however.
What believers believe is not relevant to the claim that the story has been falsified by science. Your problem appears to be with the use of the word
falsify. Believers avoid words like that - like error and untrue - when describing their scriptures even when those are the very words that they would use to describe the creation stories of other traditions. They assume that the Vikings, for example, just made up the story about Odin and his brothers creating the world - their best guess of what happened, but a guess and scientifically falsified. It never happened.
I'm imagining that you wouldn't object to reading that any more than I do, because you likely consider their religions as false as are their gods. But the faithful NEVER say that about the god of Abraham and his scriptures. They say
allegory or metaphor instead. It sounds nicer than wrong. The difference is that they still believe that their story and their story alone came from a god and therefore cannot be wrong.
That's what you're doing here, and that fine with me. I understand why. But I don't have to invoke euphemisms. The claim that God created the first two people and put them in a garden, where their disobedience led to the fall of man and need for salvation and the crucifixion of Christ has been falsified. Every human being has had two human parents so far, although that may not necessary be true in the future. You don't like that word, so you say that it hasn't been falsified, but that's exactly what that word means. If the weatherman predicts clear and sunny and it rains, we don't call that allegory. We call that error. We say that his prediction was falsified. Unless, of course, the forecast is in the Bible. Then the believer needs to find a different word. That's when he begins retranslating words, as when he says that a day of creation was not a literal day, because saying that the story was wrong is just not possible for such people.