Why?
In Dementia Joe's case, he took classified documents that he was never supposed to have in the first place.
I'm not defending what Trump may have done, but at least as POTUS he had them legally at one time, and could have declassified them before taking them. Not saying he did, but Dementia Joe never had that power until he was installed in the white house.
In other words, there's no ambiguity when it comes to Dementia Joe's guilt. But that doesn't stop those with double standards from pretending like he didn't do anything wrong.