"I can't trust that X" phrasing

(their standards of proof or whatever might be absurd, their distrust might come from something other than the relevant facts or might be paranoid confabulation ie they feel strong distrust and they generate that idea as a way to explain why the distrust is there, but yeah. there is a way it would feel if they trusted that and they don't feel that)

(maybe! I guess people could just be feeling the need to say that for some reason, like it's all verbal but disconnected from the actual physical reality... but I think this can still be modelled in terms of distrust)

is powerful because it's both emotionally valent & evocative

while also being a sort of descriptive objective statement that someone externally could just wholeheartedly accept and validate and agree with

rather than being some sort of frame on "this is how the world is" / "this is how I am"