Ahhh yes, the "both sides" argument.
Trump stole documents, refused to return them, lied about returning them, lied to his attorneys about having them, defied a subpoena and worst of all, was showing off national security secrets to be cool.
Hillary used a private email server and never took a single classified document. Turns out, she never even sent information that was classified at the time it was sent.
As for Biden, while we don't have the details as it remains under investigation, we do know that once his people discovered classified material, they immediately contacted NARA and allowed searches to be conducted.
Using the "both sides are the same" argument here is absurd.