Certainly there should be some evidence? The photos and videos are all debunked, implants "magically" disappear, etc. I mean, if there are non-terrestrial critters interacting with us they should leave something behind. None of the folks who supposedly interact with them have claimed they used some kind of super forensic destruction beam removing even the smallest pieces of evidence of said interaction. (Though it shouldn't be too long before the credophiles start making this assertion.) We are talking about a civilization that can prove a man was at a murder scene by the unique genetic traits of plants at the scene for crying-out-loud! Yet none of the visitation believers had thought to hire an independent forensics lab to check out clothes, soil samples, supposed artificats, etc? Money shouldn't be an issue... they make enough from their books and T.V. appearances (all the more lucrative if a forensics lab finds something alien).

We've had this debate here several times. There is simply no evidence, none, that anything in ancient religious texts actually refers to aliens. There is ample evidence that humans lie, invent, fabricate, misperceive, and misunderstand everyday occurances in the world about them and are quite prone to making stuff up to explain what they don't understand. That myths, legends, and religious (and political) movements can develop around misunderstanding, misperceptions, or deliberate lies is also well documented. Events, both common and uncommon, can gain "facts" and details over time that are not part of the original narrative, individuals of note will accrue both good and bad traits or be placed in times and events that they were not physically concurrent with over time... that this happens is established, documented fact. Anthropologists and historians have actually tracked the development of religious ideas and personages and their mythical aggrandizement from certain periods of history, it's no real mystery. We have many modern myths established over the last 300 years that historians and documentarians easily establish as false, yet people continue to believe in their authenticity.

It's therefore anomalous to claim that other religious, legendary, or mythical figures and events might be anything other than more of the same misunderstandings, lies, and aggrandized distortions. A great deal of proof is required before we could accept any individual set of ancient texts as anything else. That's the way it works. Your circular logic i.e. "Alien or supernatural visitations occur because ancient texts seem to provide evidence that they also occured in the past... Ancient texts are interpreted this way because we believe alien or supernatural visitations occur today..." just doesn't wash. Provide some evidence that a particular set of ancient texts isn't just more made-up or inflated hogwash or provide evidence of modern visitation.

Not anomalies. We have very good explanations and documented modern and historical examples of how such stories and legends develop.