It’s one thing to believe in presence with zero evidence, and another to _withhold_ judgment when there’s zero evidence. I think you may be conflating the two.

Then again, perhaps we are simply two different types of people. I don’t believe that a complex system can be expected to stay the same when you introduce a new factor into it, while you prefer to adjust much later when effects appear or when evidence achieves total infallibility up to the academic level. I am risk-averse, you like taking it; I’d rather prevent, you’d rather cure. Stating that the former is “far, far more dangerous” is just begging the question though.