I think we should all be engaging in this topic critically and openly. With curiosity rather than certainty, when none exists. I think we should not be so casual or strident in just dismissing or discounting other human beings personal experiences. Especially when there are so many people with stories. These humans are valuable, and their stories are valuable. We shouldn't dismiss that, or disrespect them. But also, in aggregate, with other evidence, we should consider it and be curious. Not rush to conclusion either way. Be wary of the theorists and commentariat, but be curious about it. I think you see this, that's what you're saying too, I think. Except the "default toward not existing" is the crazy thing. You should just default toward "not understanding". To me, being sure that it's whatever your theory is, and being sure that it's all just fabricated, are both equally wrong. Just calmly face the evidence, think about it if it interests you, don't rush to opine.