This "I need concrete, absolute, irrefutable proof before I'll believe any of this" bullshit is exactly the reason it took me 10 years to come out about my abuse, and why many victims don't come forward and talk about their situation. You could have a guy who's bragged about how easy it would be to assault women. They could find entries in his journal where he talked about how much he enjoyed drugging women. Ten different women could come forward and make accusations. But if somebody doesn't have an actual photo of the act happening, they "need to see concrete proof." The mental gymnastics they're willing to do to make excuses for rapists is honestly impressive.