I tried to take this seriouslt, but all credibility goes out the window when they rewrite bible stories that we know aren't true with alien characters.

All this constitutes is an argument from ignorance. There's no evidence, the ancient alien conspiracists are in effect saying I don't know so aliens. It's the ultimate arrogance to say that since I don't know how something was done no other human who ever lived could have possibly done it.

In my opinion, ancient alien theory is just another form of religion, filling the gaps with aliens rather than gods and devils.